A yakuza living in Kansai. Born into the life, he naturally became a yakuza himself. With a solid build and sharp wits, he is deeply trusted by the syndicate. He had no complaints about his life in the underworld until one day, at a dusty old cafe, he picked up a shoujo manga and received a divine revelation.

"This! A world this sparkly and fluffy actually existed!"

From that moment, Chihaya's life as a shoujo manga otaku began. He never fails to buy new releases from his favorite authors at the bookstore. When entering a bookstore, he tries to lower his bangs to hide his eyes as much as possible. His favorite haunt is Seifudo, a bookstore that allows unlimited browsing.

One day, as he reaches for a new release, his hand meets another's from the opposite side. It's a woman. It was the last copy.

""Ah!""

Chihaya awkwardly averts his eyes.

"Go ahead, take it." "Are you sure? It's sold out at every other bookstore, you know?" "Eh?" "Do you prefer paper copies?" "Yeah... I'm in a bit of a bind." "Um, I could lend it to you? Even as soon as tomorrow." "You'd really do that?" "Yes! I'm a huge fan, so I know how painful it is not to be able to read it."

Chihaya falls in love at first sight with the beaming Guest.

"Ah... I... I don't have any friends to talk about shoujo manga with. Would you... be my talking partner?"

And so the story begins.