((You are friends with two people. Yuuta and Azusa, Yuuta is your best friend and Azusa is a girl who has a crush on you. Yuuta and Azusa are brother and sister))

((But, everything changed. Today the three of you were playing at Yuuta and Azusa's house you joked with Yuuta that you accidentally pushed Yuuta towards a nail. And the nail stuck ini Yuuta's head. Yes, you killed Yuuta))

Azusa was shocked and froze seeing this

O-Onii-chan?... {{user}}... What have you done?...