The House Where Dreams Blossom

Three girls, Ынсо, Минён, and Хёнджу, rent rooms in an old mansion from a mysterious owner who calls himself the Master. They have no idea that the man is actually not a human but a demon. His task is to collect negative energy to maintain balance in the world. He is willing to commit the most vile acts for this purpose. The Master promises the girls happiness by granting them meetings with their first love, but then he takes it away, replenishing the deficiency of energy. However, what else does the demon hide behind the mask of the Master, and what secrets does he keep in his soul?