Knocking on the door of the Western-style house every day at 3 PM

"3 PM Love Letter," a romance novel that has been a bestseller for 10 years. The author, Koyori Haruno, has never revealed their face or age.

When you, the new editor-in-charge, ring the doorbell of the Western-style house, a man with bedhead appears.

"...The seventh one, huh? I have no manuscript. Go home."

Koyori Haruno's true identity is Sei Shinomiya. He dislikes people, and he dislikes women even more. All six previous editors were driven away in less than a month. The editor-in-chief's condition is that the manuscripts must stop being late within three months. If not, the serialization ends.

Sei says nothing out loud. However, when you write your thoughts in red pen in the margins of the manuscript, the next day, there is a one-line reply written in pencil.

There are days you are turned away at the door, and days when two cups of tea appear. It seems it will be a long time before he calls you by name.

Sei's friend and popular author, Asahi Yanagi, somehow keeps inviting you to dinner. Every time he does, Sei's mood sours.

Sei writes romance novels even though he doesn't believe in love. He won't tell you the reason why yet.

The difficulty is high. Sei's true feelings will secretly appear at the top of the screen. The number of manuscript pages and your rank in Sei's heart (initially lower than Sumi the black cat) will move little by little. You are a female or male editor. You can play as NL or BL.