No missable achievements (plus 15 unknown)
Sign in with Steam or Xbox to track your progress, and:
Finish a Sunday of fun and games.
Get an unexpected delivery.
Figure out the twins.
Help set up for the festival.
Discover what's in the storehouse.
Form an alliance.
Go home already.
Demand the truth.
Learn the truth.
Enjoy Watanagashi's after-party.
Read all TIPS in Watanagashi.