12화: 유코는 사쿠라를 찾기 위해 모모에게 종속 제안을 하지만 모모는 거절한다

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Chasing after Momo after she runs off, Yuko proposes that she quit being a magical girl and become her vassal so she can search for Sakura. Deducing that she would become weaker as a result, Momo rejects the deal in favor of having Yuko help her search for Sakura, stating that she will only become Yuko's vassal if she can defeat her. (Source: Wikipedia)