Update, I've managed to fix that once I talked with Akane in the afternoon. Still, I wishes the tooltip would've informed me to talk with her rather than just appearing as "locked" and "you need to build that first" even though Mayu's screen already indicated that as already built.
Aaa, I get it, when you build the room, at the end of the event it tells you to go talk to Akane in the afternoon, anyway I'll add the hint to her info too.
