Cape's Escape Game 4th Room is a short adventure game in the Cape's Escape series, which you can complete in an hour or so. Solve the mystery and escape from the Japanese hot springs inn.

The main character invites his girlfriend Todomi out on a super low-cost trip to the hot springs. Of course, Todomi rejects him.
Being super low-cost, he can’t cancel his trip. Heartbroken with tears in his eyes, he forces himself to set off on his trip.
 But even 1980 yen is way too cheap for a trip with meals included.

 Sure enough, turns out that the main character's one night stay is not at some ordinary Japanese-style inn. It comes with an escape game.
 Solve riddles to help the main character escape from this traditional Japanese hot spring inn.