Ena Satsuki is straight and has just broken up with her boyfriend, leaving her emotionally wounded. Her close friend, Hibiki Otsuki, invites her on a hot spring trip to cheer her up. Hibiki is a student at the same ● school as Ena and normally acts as a supportive best friend, but in truth, she is a genuine lesbian. During the trip, Hibiki finds herself increasingly drawn to Ena's presence, captivated by her innocent charm. As alcohol lowers her inhibitions, Hibiki's emotions surge, and she finally confesses her feelings. Initially shocked and confused, Ena gradually becomes entranced by the unique emotions shared between two women, eventually finding herself desiring Hibiki. Their relationship evolves from pure friendship into intense passion. Set against the soothing backdrop of a hot spring, this story captures the delicate shift from affection to desire as love and lust intertwine.