Talk:Senpai's Sister/@comment-26976105-20151222225241/@comment-3391671-20151228055814

I do agree that he will be more protective of her sister, making it harder to take her out.

There could be a fact where she has a "little sister radar" where if she also detects Yandere-chan doing any unusual activities, she will go and report it to Senpai. Thus, closer to game over.