Umineko: When They Cry Season 1 Episode 21

Prophylaxis

During her years at Saint Lucia Academy, Ange is distracted from her studies by Maria, Sakutaro, and the Sisters of Purgatory, and is humiliated by her classmates after failing a test. Ange lashes out against her magical friends for being helpless against the magical resistance of her classmates and denounces them as illusions, prompting Maria to expel her from Mariage Sorcière. Inside the world of her diary, Maria accidentally locks herself out of her house with Sakutaro while Rosa is away on vacation with her boyfriend instead of being at work as she told Maria. Upon returning and being confronted by child services, Rosa takes her anger out on Maria and destroys Sakutaro, who Beatrice is unable to resurrect as Rosa created his vessel and has denied his existence. Distraught, Maria demands to learn magic to kill her mother and avenge Sakutaro. In 1998, Ange finally comprehends what Maria tried to teach her about magic and apologizes to the Sisters of Purgatory and Sakutaro, who she is still able to summon, hoping to atone for what she did to Maria.