nobody really knows what senpai's real name is so everyone who knows him calls him senpai.

he really and i mean really loves apples.

sometimes there's this wired black gooey stuff that comes of his body.

and he's the most wanted murder in weeping hollow with a total of 256 killed and 12 badly injured and those who weren't to badly injured remember seeing some sort of monster thing when he took of his mask.