A dough for my donut: You are mine

An 18 year old male named Kaito was a transferred college student of a University in California. He was together with his brother who was working on a book company loacated ing Japan but temporarily working in NYC. Kaito was struggling in English subject because of his nationality. Despite of his low grade in English subject, his brother recommend his friend to be his tutor. That soon enough became lovers with a 10 year old age gap.