hmm i dunno, i found myself empathizing with fukube a bit here, which i assume was the point of this chapter. kenji and the others just using him so they can read his manga and then not even considering inviting him to the group... i know what it feels like to be left out like that. i didn't become a homicidal sociopath, but still. :(
btw i wonder how he has such a huge collection, are his parents rich?