Board Thread:Fun and Games/@comment-28969602-20160426053723/@comment-28969602-20160428123609

My theory for imouto chan

Resistant: Direct Killing methods, Gossiping(Since Senpai doesn't have any dark secrets, it's unlikely his sister will have a really dark one, it may be something like, she broke something that was very dear to Senpai.

Vulnerable: matchmaking, if you find a boyfriend for imouto, it's possible Senpai may thank Ayano and that would mean the world to Yan-Chan.