Simple Series Vol. 4: The Misshitsu kara no Dasshutsu

 (@SIMPLEシリーズ Vol.4: THE 密室からの脱出) is an escape game. Waking up from a nap on the balcony the key is in the window. It is serious, I can not return to the room! Yes, let's seek female college students living next door for help. Oh, I just wanted to go to the bathroom only at such times. Let's escape from the balcony anyway, and all three other stages!