Suisen: School for the Passionately Tainted

The role of the farmer is to create rice for the samurai, and Jun told his father he was doing just that when he took over the family farm. When his father checked the farm, instead of thriving green crops, he found giant monsters that Jun had created by drawing them in ink. Terrified, he deemed Jun a non-human and threw him out. To return to his father and community, Jun joins Suisen; A school that can turn any non-human into a regular teen, by taking away their magical ability.