Ame Yadori no Heya (雨やどりの部屋, Rain Shelter Room) is an escape room Flash game by TRIPLE ROCK and the 14th such game from them. It's raining and you're about to leave what appears to be some sort of office room, but you don't have the key to the door. You must now observe around the room for clues on where to find the key.
Rxser in this run knows all the codes and secrets and gets the best ending by finding the key and following the directions on the sign next to the door, doing so as fast as possible.