Reeling from a divorce after two decades of marriage, middle-aged office worker Saiki Yasuo drowns his sorrows in quiet nights of drinking. His monotonous routine is disrupted when a girl from St. Marian Academy approaches him with a proposition for paid companionship. Intrigued yet hesitant, Yasuo navigates the complexities of this new connection, reflecting on his emotional state and the possibilities it presents. Through this encounter, he begins to explore uncharted territories of his personal life.