Shiro believes he's been sent to the wrong school.
Rormund Academy: home to only the best of the best. A school where only the wealthiest, smartest and most athletic students of the world reside. An establishment so exclusive even its name remains elusive to the public. Shiro exhibits none of these qualities, having more in common with a sheet of plywood than with royalty.
Regardless, he intends on spending the last of his school years as planned; as a normal schoolboy and nothing more.
Until they see the scars on his back.
(obligatory "also posting in Royal Road" for exposure's sake)