"I will remain only as Ryuu's friend," Amakasu Kiichi, a gay man, has lived with his straight best friend, Shibata Ryuunosuke, and raised Ryuunosuke's niece, Mako, for three years. Despite difficulties balancing work and childcare, Kiichi has managed to form a family-like bond with them. However, he has harbored unrequited feelings for Ryuu for years, which he has kept hidden to ensure Mako's happiness. But one drunken night, Ryuu holds Kiichi, and everything changes. This is a heartbreaking tale of unrequited love and family ties.