>>120697
Ah, my bad I got the solution backwards then. So each switch has a note in the room, the notes all say slightly convoluted things related to the club activities most of which hint at a day of the week. Like the swimming pool one has something about "fun water activities" or something to that effect (it has been months). 月、火、水、木、金、土、日 are the short form days of the week in Japanese, being Mon/Tues/Wed/Thu/Fri/Sat/Sun but also moon/fire/water/wood/gold/earth/sun. So Wednesday = water = "fun water activities" meaning the pool switch is one. I went through my old saves to see if I could just get you the solution but I didn't keep one that far back.