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Full Book Of Yog Idle RPG 依盖之书 update
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What changed
- Balance
- Maps
- Gameplay
- Events
- Store
- UI and audio
Book Of Yog Idle RPG 依盖之书 changes
Dear Commander:
We plan to start update maintenance on 16:00, January 29 (UTC+8). The maintenance is expected to take 120 - 240 minutes.
*Please pay attention to the community and in-game rolling announcements for specific times.
After the maintenance, please update the client to the latest version before start the game.
During the maintenance, the players will be forcibly disconnected and unable to login. Please logout before the maintenance to avoid any data loss.
The following is the introduction of update contents:
New Blackguard
- Nightmoon Warden, Sasaya
Steam post imageSteam post image
Dark-attribute Blackguards receive the full bonus effects from skills such as
【Embrace of Thunderbolt】 (Komori'), 【Golden Weaves】 (Miluie), 【Eternal Erosion of Glacier】 (Heliina), and 【Silent Venom】 (Brittany).
The Guild Ascension level of Dark-attribute Blackguards is synchronized with that of Fire-attribute Blackguards.
New Damage Type: Shadow
Shadow Damage benefits from Fire / Frost / Lightning damage bonuses (only the highest bonus applies).
When damage reduction is calculated, Shadow Damage is affected by Spell Damage Reduction and Spell Armor. For resistance calculation, Shadow Damage uses the lowest value among (the attacker's Fire/Frost/Lightning Penetration − the target's corresponding resistance) as the baseline.
Damage bonuses based on elemental types in Paradox Sailing, Journey Story, and Everwinter Land will also apply to Shadow Damage(only the highest applicable element bonus takes effect).
The orb-generation effects of Runes 【Frostbite】, 【Waning Moon】, and 【Fireplayer】 can now also be triggered by Shadow Damage.
New Ancient Set
ABYSS HEX SET
Effects:
Abyss Hex (2): Bravery +10, Perception +10
Abyss Hex (4): Increases Final Damage dealt by Dark-type Blackguards by 20%
Drop:
Obtainable in Journey Stories stages:
[The Phantom of Orient], [My Heart Is Fire], [Sweet Slumber]
Blackguard Adjustments
▶Shamneko in Night · Nyanko
| Skill Adjustments | Previous | Updated |
|---|---|---|
| Lightning Knife | Nyanko throws a knife to the enemy, it penetrates all enemies on the path and causes Lightning DMG equal to 700% of Spell Power. (Does not scale with Attack Speed; damage is treated as Skill Damage) | Nyanko throws a knife to the enemy, it penetrates all enemies on the path and causes Lightning DMG equal to 800% of Spell Power. (Does not scale with Attack Speed; damage is treated as Skill Damage) |
| Kunai Flurry | When Nyanko throws the knife, she gains the Kunai by 1, when Kunai exists, releases all Kunai and causes Lightning DMG equal to 400% of Spell Power to random enemies, the max Kunai gained is 8. | Whenever an enemy is afflicted with special statuses such as Numb, Weaken, Daze, Slow, or Judgment, there is a 15% chance to release 2 Kunai Flurry at the target, dealing Lightning damage equal to 1500% Spell Power on hit.(This skill's cooldown cannot be reduced below 1 second.) |
| Secret Art: Thunder Cage | Nyanko releases a thunder circle to the random enemy, the thunder circle releases thunderbolts per sec within its range, causes Lightning DMG equal to 750% of Spell Power to enemies up to 8. | Deploys a lightning field on a random enemy for 5 seconds.The field strikes lightning every second, dealing 5000% Spell Power lightning damage to up to 5 enemies. |
| Mark of Lightning Blade | [Secret Art: Thunder Cage] inflicts 1 Storm Mark to the target hit, when Storm Mark stacks to 5, deals Lightning DMG equal to 1200% of Spell Power, and Stun the enemy for 1.5 sec, then clear all Storm Mark. | When Ultimate · Thunder Prison hits, it has a 5% chance to stun the target for 1.5 seconds.If the caster's Perception exceeds the target's, the greater the difference, the higher the trigger chance.Additionally, Thunder Prison damage is increased by 100%. |
| Spellbound of Senbon | Increases the DMG Dealt by [Kunai Flurry] by 100%, and stacks 1 Storm Mark when the Kunai hits. Multiple Kunai hit the same target only stack once. | 【Lightning Knife】ricochets once (−50% bounce damage); 【Kunai Flurry】damage +50%. |
| Thunderous Slash | Increases DMG Dealt by [Secret Art: Thunder Cage] by 100%, and gains 1 Kunai when the Thunder Circle releases thunderbolt every time. | Nyanko's Perception +10. |
| Lightning Release: Nyanko | Increases Nyanko's Skill Crit Chance by 30% | Increases Nyanko's Skill Crit Chance by 20% |
| Sanguine Adjustments | Previous | Updated |
| 『Sanguine LV.1』 | Gain 1 Kunai every 1 sec, and [Kunai Flurry] can bounce 2 times, and the DMG Dealt is decreases by 25% each time it bounces. | Kunai Flurry count +2 |
| 『Sanguine LV.2』 | The max number of [Kunai Flurry] can gain is increased by 100%, and when [Kunai Flurry] deals DMG, it has a 15% of chance to inflicts 1 stack of [Electrocuted] status to the target hit. | When casting Kunai Flurry, gain 1 additional Lightning Knife for every 25 Soul. |
| 『Sanguine LV.3』 | When the battle begins, gains Kunai by 8. And each enemy stunned by the [Storm Mark] can reduced the cooldown of [Kunai Flurry] by 1 sec, and when [Kunai Flurry] deals DMG, it has a 15% of chance to inflicts 1 stack of [Storm Mark] to the target hit. | Reactive Skill trigger chance +10% |
| 『Sanguine LV.4』 | Increases DMG Dealt of [Secret Art: Thunder Cage] by 50%, and when [Lightning Knife] deals DMG, it has a 50% of chance to inflicts 1 stack of [Storm Mark] to the target hit. | When Lightning Knife hits, it has a 1% chance to apply Judgment to the target for 5 seconds.If the caster's Perception exceeds the target's, the greater the difference, the higher the trigger chance.(Judgment: Reduces the target’s Valor, Perception, and Tenacity by 3. Stacks up to 10 times.) |
| Exclusive Weapons & Mould | Previous | Updated |
| Weapon | When Nyanko obtain 1 Lightning Orb, she has a 100% of chance to convert it into a Kunai, and Nyanko's DMG Dealt is increased by 5%. | While Lightning Orbs are active, each Lightning Orb increases Reactive Skill trigger chance by 1%, all damage dealt by Nyanko is increased by 10%. |
| Mould | When [Kunai Flurry] hits only a single target (Sanguine Level 1 effect is not activated or Sanguine Level 1 effect is activated but there is no target to be bounced), it will deal an additional DMG equal to 50% of the DMG of [Kunai Flurry] to that target. | When the Stun from Mark of Lightning Blade is triggered, it also deals Lightning Damage equal to 12000% Spell Power to the target. |
Light & Dark Optional Banner
Duration: 2026.02.15~2026.02.27
Available Blackguards in this Banner:
1.Players may choose one SP Blackguard to summon from: Freyja or Theiana
2.This banner has an independent pity counter. Before obtaining the selected SP Blackguard, players may freely switch their selected target, and the pity progress will be retained.
3.Once the selected SP Blackguard has been successfully summoned, the target can no longer be changed.
Covenant of the Stars Banner — Covenant Vault Reward
When players pull in the Covenant of the Stars banner, each draw increases the Pact Covenant Vault Reward. Every cycle that reaches the required number of pulls grants Starwish Stone.
Starwish Stone Usage
Go to Black Market → Regular Shop → Starwish Shop to exchange Starwish Stones for rewards.
Shop inventory refreshes monthly.
Go to Events → Starluck Blessing and use Starwish Stones to participate in a special draw and win rewards.
Players who pulled in the Covenant of the Stars banner between January 1, 2026 and this update will receive retroactive Starwish Stone via mail, based on Pact Vault progress.
Story Event(Re-run)
The Flare in the Woods
Event Duration: 2026.2.6 9:00 ~ 2026.2.27 12:00
A long time ago, there was a legend here that the dragon dropped blazing flames from the sky. Now, there is also a legend here, that the great dragon reappears.
No matter it was before or now, please go there, lift the rain curtain, and write your own ending for all the stories.
Event Introduction
Participate in the event, challenge the final level, you can obtain different amounts of event store token - [Igneous Gold(Re-run Ⅱ)] according to different levels of difficulty you challenge.
After obtaining [Igneous Gold(Re-run Ⅱ)], you can go to the Event Shop to exchange for generous rewards.
Black Market Update
Limited-Time Store: Lucky Exchange
Currency: Lucky Charm
(Emblem of Luck Essence can be exchanged for Lucky Charm here.)
The shop will remain open until the end of March, and items will not refresh during this period.
When the shop expires, all Lucky Coins and Lucky Coins re-run will be automatically converted into Bound Gold and sent via in-game mail.
New Gift Item— Heart of Vows
"Even as time flows on, the vows of true love remain—steadfast as stars."
Gift it to a Blackguard to instantly increase Favorability by 5000!
Mall Update
Unlist Packs
Favor Pack
Moonlight Suprise Pack
New Available Packs:
Covenant Pack
Starwish Pack
Moonlight Pack
Limited-Time Pass
Duration: 2026-02-01 ~ 2026-04-01
During the event, Commanders can earn Points by spending FP or AP. Leveling up the Pass grants rewards. Purchasing the Premium Pass additionally unlocks the Sasaya skin set, a Sanguine Optional Box (Option Updated), and a large amount of Sanguine Stones.
Awakening System Upgrade
The [SS Awaken] feature in the Cathedral has been upgraded to the [Material Awaken]. Players can select a target Quality, Rarity, and Front in the interface, and the system will automatically calculate all eligible Blackguards for rapid upgrading. This feature is mainly designed to streamline material synthesis required for upgrading Yggdrasil Temple level and the SP Blackguard Front level.
Covenant of the Stars
New Backguard in [Covenant of the Stars] Banner: Silverblade Oath - Delyanne
Academy Cup S29 Season
Season duration: 2026.02.01 ~ 2026.02.28
Participating in the Academy Cup competition, the top-ranked commanders will obtain the following rewards:
Exclusive Avatar Frame：Silverglow: Moontrace
Time Capsule：Genesis S Frame Box，Genesis Frame Box，Genesis Title Box
Everwinter Land
[Everwinter Land] New season is about to start. Due to the blessing of Fire, Fire type heroes will enjoy additional combat ability improvements in the battle of [Everwinter Land]
Participate in the Everwinter Land Rankings. Commanders who place at the top will receive the following rewards:
Time Capsule：Genesis S Avatar Box，Genesis Frame Box
Void Chasm & Season 7 Launch
Duration: 2026-02-03 ~ 2026-02-23
Top commanders on this season’s leaderboard will receive the following rewards:
Exclusive Avatar：Attachment
Time Capsule：Genesis S Avatar Box，Genesis Avatar Box，Genesis Title Box
Guild War-S7 Season
Updated leaderboard reward: Guild Emblem — Azurewing
Otherrealm
"This is the origin of all beginnings—and a forbidden land that must never be entered.“
Legend has it that beneath the Ancestral Frostbarrow lies an ancient evil, sealed away for centuries. Only those who wield the shattered blade and earn the ancestors' approval may glimpse this faded history—and uncover its long-lost treasures.
Uncover the secrets of the hidden dungeon Blighted Tomb in the Bear Kingdom, seal the lingering threat from the past, and claim rewards including Archaic Shattering Stone and powerful Archaic Equipment!
Events
LUMINOUS YEARS
Qualification Activation：2026-02-14~2026-02-27
Participate in the login event to earn generous rewards, including Sanguine Stones and Covenant Crystal.
New Event: Starluck Blessing — Sasaya Weapon
“A trace left behind when a star falls across the sky — once believed to be a blessing from the gods.”
Duration: After update ~ 2026-02-25
Spend Starwish Stone to draw from the event pool for a chance to obtain Sasaya's weapon — Shadow and Moon, along with Sasaya's accessories, Whetstone, and Bound Gold.
After obtaining the grand weapon prize, additional premium bundle rounds will be unlocked for purchase.
During the event, spending FP gives a chance to obtain the event item [Springblaze Firecracker]. Open them to receive Enhancement Stones, AP, and other valuable rewards.
Duration: After Update ~2026-02-26
Reach specific cumulative top-up milestones during the event to obtain the following skins and many other rewards!
Major reward update!
Includes the gift item Heart of Vows, Sasaya's accessories Woven Bloom and Wisp Bow, as well as a Supreme Skin Chest (choose one past limited cumulative top-up skin).
Event Rule
Duration the Event, every【Sanguine Summon】will gain point, accumulate point to obtain massive pts reward. Event reward can be claimed up to 6 rounds
This event will have server/Cross server ranking, and will provide related ranking reward (The Heart of Summon leaderboard will be replaced)
Expected Event Duration
After update ~ 2026.02.15 12:00, 2.15 15:00 ~02.26 12:00
Event Rule
During the Event, consume FP will have chance to drop event coin「Sakura Emblem」. 「Sakura Emblem」can be used to exchange various reward on event shop.
Expected Event Duration
2026-1-15 8:00 ~ 2026-1-21 12:00
Event Rule
Use stones in the workshop to obtain score, Get up to 6 rounds of rewards provided by Nora
Different Modification Stone will provide different amount of points
Accumulative point reward can be obtained up to 6 rounds
Expected Event Duration
2026-02-01 ~ 2026-02-28 12:00
Event Rule
During the event, Commanders earn points by fighting in the Academy Cup.
Points are accumulated on the leaderboard, and rewards are distributed based on total points earned when the event ends.
Expected Event Duration
2026-02-15 08:00 - 02-21 12:00
Time Capsule：Genesis S Title Box
Event Rule
During the event period, every 1 FP commander consume will gain 1 event point, accumulate point to certain amount will gain stage reward, there will be 7 stage, up to 6 rounds.
Single-server and Cross-server leaderboard will be set on this event, rewards will be distributed based on the total event points accumulated during the event.
Expected Event Duration
2026-1-15 08:00 - 2026-2-13 12:00
< Brave Trial >
< Event Rule >
Commanders receive 2 free challenge attempts daily, up to a maximum of 10 stored.
After free attempts are used, challenges can be continued by consuming AP.
Commanders must assign one Blackguard to participate in Brave Trial.
The Blackguard starts at Level 500 and initially has no equipment. Each wave has aclear-time limit. Exceeding the limit will reduce the Return Time.
The Blackguard starts with 5 minutes of Return Time. When it reaches zero, the next wave cannot be challenged.
Clearing a wave grants Trial Crystals used for equipment modification, and allows equipping one item.
Equipping an item replaces existing gear in the same slot.
After defeating a boss, Trial Crystals can be spent to upgrade equipment to Immortal or Mythic quality, or to obtain an additional new piece of equipment
FP can be consumed during the mode to obtain drops such as Diamonds.
At the end, Sakura Emblems are awarded based on the number of waves cleared.
A series of event missions will be available, offering generous rewards upon completion.
Clearing Wave 10 grants a chance to enter the leaderboard and earn bonus Diamond rewards.
< Event Duration >
2026.02.01 8:00 ~ 02月07 12:00
Event Rule
During the Event, players can obtain massive Warp Scroll, Alchemical Dust and Emblem as reward by completing a serial of modification stone fusion task
Expected Event Duration
2026-02-08 8:00 ~ 02-14 12:00
Blacktide Frontline is a limited-time trial. During the Event period, The commander has to challenge boss with 4 blackguards with self-decided difficulty
Event Rule
The boss has a specific weakness which appropriate Blackguard can take advantage of
The challenge of all difficulties cost 100 AP
The trial is limited to 180 sec. If whole team faints in battle or exceed the time, challenge fails
If kill the leader within the time limit, commander will win score and drop rewards from boss
The more bonus drops will be given at higher difficulties, massive modification stone will be awarded.
Each difficulty has its own leaderboard and will provide ranking reward（Each leaderboard will have level limit, the rule is similar to Primeval Gate Leaderboard）During this round, there will also be cross-server leaderboard
There is also score for each participation. Bonus rewards and score ranking rewards will be given based on the accumulated score, including modification stone, SS blackguard Shard and precious coin
Expected Event Duration
2026-02-08 8:00 - 02-14 12:00
Time Capsule：Genesis S Avatar Box, Genesis S Title Box
Monthly Card: Daily rewards increased by Moonstone Shard x3
SP Monthly Card: Daily rewards increased by Covenant Crystal x30
Lifetime Card: Upon first purchase, immediately receive Mythical Upgrade Stone x20
(Players who purchased previously can claim the reward via in-game mail)
Upon first purchase, immediately receive Mythical Upgrade Stone x20
(Previous purchasers can claim the reward via in-game mail)
The Crystal Shop's double bonus will reset on February 5
BUG Fixes and Other Optimization
Optimized skin accessory UI interactions and added category tab icons
Improved the quick battle feature on the main city top bar — after clearing the main story, players can view upcoming core gameplay content here and set quick access once unlocked
Fixed an issue in multi-team modes (such as Otherworld) where unit spawn positions were incorrect when switching to the next team during boss battles
Optimized the display positions of certain hover tooltips
Reduced the number of pop-up windows shown on game login
Improved the display of battle HP bars (see the image below for details)
Source
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