With his wife away on a trip, Ataru had no choice but to rely on his stepmother, Erika. However, Erika's seductive and alluring presence begins to stir deep emotions within him. Though Ataru had always suppressed his feelings for her, he finds himself increasingly drawn to her irresistible charm, crossing the boundaries of their familial roles. With his wife absent, hidden desires between them start to surface, eventually erupting into uncontrollable passion. This temporary separation ignites a new spark in their relationship, fueling an intense and forbidden connection.