3days ～満ちてゆく刻の彼方で～

The game revolves around the main character's 3 days repeating over and over again, where he is constantly being killed in the third day of the story (in various ways) but magically being brought back to life in the first day to repeat his 3 days. Your goal here is to solve the mystery behind the death of your senpai and also to find the identity of the murderer. [From a forum post by Adellus]