麻雀一番街: Riichi City × POP TEAM EPIC 🔥Collaboration Confirmed! 🔥

Steam post imagePopuko and Pipimi are joining the mahjong world! Get ready for collab exclusive decorations and lots of fun! ⏰ Collab duration: 2026/05/22 (Fri.) 10:00 - 2026/06/20 (Sat.) 23:59 (UTC+9) Follow-up news wi…