I think its Danshaku No Aijin ヾ(☆▽☆)
Some time ago, the son of a long line of earls, Houjou Reiichirou, was forcibly pushed down by his arrogant classmate, Himuro Kanae. Six years later, the two meet again and Himuro uses his power to make Houjou accompany him on a cruise as an employee, in place of his little sister.
http://www.mangago.m...... 1 reply
did listen to j rock or j pop
