15화: 아야카가 여름 방학 동안 네기 및 동급생들을 자신의 가문 저택에 초대하다

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Home in the family estate for the summer break, Ayaka gets a visit, to her delight, from Negi and, to her horror, the rest of the class. Ayaka's childhood memories with Asuna are also brought up, mentioning how Asuna made Ayaka smile and laugh again after she was saddened by her little brother's premature death. (Source: Wikipedia)