Board Thread:General Discussion/@comment-30033404-20170608021753/@comment-34645353-20180319213612

TheVortexOfAwesomeness wrote: Telling Senpai it was a rival who killed his sister and/or Osana and then watching him kill her when she has her guard down around him

But then, I'm not sure Senpai would ever kill someone, no matter what they did. But he would hate them. Actually, in one of YandereDev's videos, he hinted that if Senpai was forced to watch his sister die in front of him, he 'wondered' what would happen. The video shows Senpai come at the screen with a knife.