帝乃三姉妹は案外、チョロい。 (Mikadono-san Shimai wa Angai, Choroi)

Plot

Though Ayase Yuu is the son of a renowned and talented actress, he is below average in anything he does. He is entrusted to live under the care of his mother's friend, and later discovers that he will also be rooming with the three sisters from his school who possess both beauty and talent. Though Yuu thought that an understanding would be impossible to reach between an ordinary person and those blessed with talent, the three sisters are surprisingly...?!