Mangas

ネガティブ・ハッピー・チェーンソーエッヂ -  Negative Happy Chainsaw Edge
Eri Yukizaki is a girl who fights. She is a "pretty soldier." Her foe is the evil Chainsaw-man, who doesn't die even after being slashed. If he isn't defeated, the world will have no future. I was wrapped into this battle, and my life has changed completely... A "non-stop" negative youth story!
歡迎加入NHK! -  NHK -  NHKにようこそ! -  Welcome to NHK! -  Welcome to the NHK!
From Tokyopop: Sato Tatsuhiro is a drug-addled "hikikomori" (a Japanese shut-in) who thinks a sinister organization, NHK (Nihon Hikikomori Kyoukai), is the cause of all his problems! He falls in love with a girl, Misaki, who he thinks is trying to assassinate him, but doesn't know how to talk to her or if he can trust her. The more he stays in his house watching anime porn, reading manga, and doing drugs, the harder it is for him to leave. Only Misaki can keep him from rotting away in his own apartment!