For those who think Jian Yi did it, it can't be him. If you guys remember he gave the letter to Zhan Zheng Xi a while back. I don't believe it was He Tian either. I doubt he even knew about the letter. As for Zhan Zheng Xi, he's too much of a considerate person to hurt somebody like that. Are you guys sure that's the girls name? Maybe it's some one else...
He Tian is aware of everything, I think. lol
I think the trope might be that everyone'll think that Jian Yi did it (which he of course didn't; not only do we have solid evidence that he didn't, but he'd never do something so cruel either). We don't know the girl's name since before, but it would be weird if Old Xian just introduced a new female character that also wrote a love letter to Zhan Zheng Xi, so we can probably safely assume it's her. What a sucky birthday present, amirite. Also, He Tian is too caught up in Redhead to meddle with Jian Yi and Zhan's business, so he probably wasn't the one who did it either. I've heard some people speculate about that guy with the wrist band from chapter 117, who still remains unknown. Oh, I'm rambling... am I reading too much into this..?
I honestly think none of the guys did it and that a girl did it. Seems like a catty teenage girl thing to do.
In the first story they kind of remind me of Shizuo and Izaya ╮(￣▽￣)╭
Anyway this was a trainwreck of emotins, dark and strangely sweet at the same time. The author almost went George R.R. Martin on us by almost killing the main characters, but I'm glad there wasn't a tragic ending.
I never thought I'd call a spider cute but that spider on the last page was kind of cute with the little droplet of water on its back. (づ￣ ³￣)づ