Amani Fujimiya, a quiet and kind-hearted high school student, finds himself drawn into a deeper connection with his classmate Mahiru Shinna, known as "The Angel of the School," as they navigate their shared apartment complex and hidden relationship.
Their bond, initially confined to private moments, begins to blossom under the cover of a rainy night, leading to a series of intimate encounters that challenge their preconceived notions of friendship and love.
As they explore their feelings, they must also contend with the complexities of their social circles, including the lively and supportive Itsuki Akasawa and the curious Chitose Shirakawa, who add layers of tension and camaraderie to their journey.
The narrative delves into themes of first love, self-discovery, and the delicate balance between public personas and private desires, all while exploring the emotional and physical intimacy that develops between Amani and Mahiru.