Tsugumi, who works at an interior design firm, runs into her first love from high school, Itsuki, at a dinner with her client's entire team, an architectural firm. Seeing Itsuki, a registered architect with a first-class license and a lovely personality, brings up vague recollections of high school. He quietly sneaks away in the middle of dinner and begins to wheel himself home. "You didn't know? Itsuki was injured in a car accident in college and is unable to walk." Tsugumi takes a step back, her heart beating, and thinks to herself, "I can't love someone in a wheelchair." Dating someone like that is simply not possible." But as she realizes the reality of the situation and connects with Itsuki, who struggles but strives for survival every day, she is overcome with emotions she has suppressed since her childhood.