The dream of an otaku girl is here! A contract marriage story that never has a love flag! Manga adaptation of an award-winning novel. Toko Takanashi, 29 years old, is an otaku. "I feel the pressure of the world, but I don't want to get married or have a romance. I want to immerse myself in my hobbies, but honestly, it's a little hard to live alone." At that time, a friend from the university, Haruhisa Nagata, a handsome man, suggested "Friendship Marriage".