I'm Kishi Knight: Your Private Tutor - Kateikyoshi no Kishi Knight desu.

Synopsis

The story is a heartwarming comedy about "sparkling prince" private tutor Kishi Naito and the hot-headed delinquent, Takasugi Toru. Toru's mother, worried about her son's constant fighting and terrible test scores, hires Kishi as his tutor. Though Toru is bewildered by Kishi's gentle and sweet teaching style, he soon finds himself drawn into Kishi's pace, setting the stage for a dramatic transformation in his life.