Nashiko has mes Chonbo, a mahjong spirit, and the mysterious Riichi Hayashi at the old mahjong parlor. On her day off, Nashiko finds Riichi outside the parlor, reminiscing about her joyful childhood memories there. Riichi eagerly invites Nashiko to play mahjong, but Nashiko, preferring to make the parlor a secret hangout for friends, hesitantly seeks reasons to decline the offer.