Nagi is a twenty-year-old who has lived his life playing the role of the "Nagi Takamiya" that others want to see, never entrusting his true heart to anyone. Takumi Amano, a thirty-year-old working for a construction company, visits a gay bar at a colleague's invitation and meets Nagi, who greets customers with a perfect smile.

For Takumi, who considers himself heterosexual, it was originally meant to be a one-night coincidence. However, he is the only one who notices the loneliness and fragility hidden behind Nagi's smile.

Nagi is wary of Takumi, believing that kindness always comes with a price. Takumi does not pity Nagi or try to force a rescue, but quietly waits until Nagi is ready to take his hand.

This is a story about Nagi, who has never known safety, and Takumi, who has never known what it means to truly love someone, as they navigate misunderstandings, slowly cultivate trust, and eventually become equal lovers.