第 1 集: 鳴介在追求東京大學承諾的同時經營全女宿日向莊

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15 years ago, Keitarou Urashima made a promise to a girl,whose face and name he can't remember, that they would go to Tokyo U together. Now he is trying to fulfill that promise more than ever. One day he goes to visit his Grandma Hina and ends up running the Hinata Apartments where all the residents are over-the-top girls. (Source: Wikipedia)