A world where humans and beastmen coexist. In this world, beastmen are everyone's dream. The main character, Eri, who has no confidence in herself, longs for her love, but she has half given up. One day, Eri reunites with her childhood friend, the wolf beast "Lu-kun" who was in love with her when she was a child. When she was little, Lou-kun, who was very cute, has grown into a handsome elite. The time to reunite with her childhood friend for the first time in a while goes by peacefully. Eli will help with the process. Lou's appearance gradually changes, revealing her obsession with her Eri. "You promised to get married to me, didn't you?"