The manager of the ramen store, Oka, has had a sex-friend relationship with his best friend, Akemi, for many years since high school. Although they certainly love each other, Oka drags the memories of his first love that didn't end well, and Yakuza's son Akemi keeps people at a distance and lives in the shadow of loneliness. This kind of relationship will end one day, I have to end it - just when I was thinking about it, Suruga, a man involved in Oka's first love, appeared in the ramen restaurant...!?