Waga Itoshi No Wota Kanojo

would you like an otaku girlfriend? obviously the answer is no, but she comes to school only 3 days a week, has a sickly body, is smart, super popular, and is a cool beauty, shes “mysterious heroine” shiraishi yuki. and an “ordinary protagonist” sakai haruhiko, nothing stands out about him and hes a harmless guy who does not seems like a protagonist at all. the heroine that the protagonist fell in love without knowing anything, is actually a super closet hikkikomori otaku!! thus, this is his story to understand her hobbies, while walking in the thorny otaku path.