Zenryousei Ginsei Gakuen Monogatari
The Story of Ginsei Gakuen Boarding School
全寮制銀星学園物語
Matsushiro Atsuya is from a very wealthy family. In order to prevent his childhood friend Kyousuke from moving away, Kyousuke was appointed his servant. However, now they're in high school and Atsuya may be falling for Kyousuke, but it make be a onesided love.
(from B-U)