Hentai

Yuuko Natsuki, a rookie reporter for an occult magazine, sees a girl's spirit in a "cursed apartment" she visited for coverage. Aiko is the spirit of a girl who massacres humans who step into the apartment. In a curse stretched like a spider web, Aiko continues to grow on the death of humans. Is there any way for Yuuko to survive the curse?!

(Source: Kodansha, translated)

Hentai is an adaptation of Kaisaru's 2016 web novel of the same title.