Eri Yukizaki is a girl locked in battle with a chainsaw-wielding incantation of true evil. But, like the demons that boil inside her heart, the 'Chainsaw Man' doesn't seem to die, no matter how much she stabs him. As she fights, a young man, Yamamoto, watches love-struck, wishing he could be more than just her useless bicycle courier.
Takimoto Tatsuhiko
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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,…
Welcome to the N.H.K. revolves around the lives of several young-adults all living in or around the city of Tokyo. Many different lifestyles are shown though most of the time the story focuses on the concepts of being a hikikomori, anime otaku, and having most of the characters experience intense feelings of depression and loneliness.