Board Thread:Questions and Answers/@comment-26700274-20160817003509/@comment-29672520-20161122044147

I'm pretty sure they are implying that she mugged people. It would also be easy to make money as part of a gang... Hence the wealth of higher ups in the Mafia and the Yakuza. Since she is the leader, it would make sense that she got the largest cut of the profits.

HOWEVER. Concerning the blood on 'the girl's' clothes... Assuming it's Info-chan... Yandere-dev had originally planned for Info-Chan to be the final rival, willing to kill you for Senpai's love after you had done all her dirty work. The idea was scrapped since Yandere-dev realized that the idea was a bit cliche. I can't remember when the idea was scrapped, but I'm thinking it was probably trashed after the tapes around the school were recorded, and he hasn't gotten around to fixing them yet, since they are a low priority.

If Info-chan was the girl in the tapes, that would provide a vague reason for the blood. Who knows what she does, perhaps she did her own work as an assassin before realizing that Yandere-chan would make a much easier guinea pig, not to mention she is safe in the confines of the Info Club.