Shiroi Neko no Gakkou

A school known as White Cat School is attended by white cats who may one day become members of the White Cat Knights, an exclusive group composed solely of white cats. Students who graduate while maintaining white fur are accepted into the organization, while those whose fur changes color lose their aspirations and vanish. The students work diligently, hoping to achieve their goal of becoming knights. Col, one of these students, is cheerful and kind. When his close friend Leonis begins to lose his white fur, Col faces a possible transformation of his own.