The BEST seasons of No. 6

Every season of No. 6 ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of No. 6!

Raised as a top-ranking elite since the age of 2, a boy named Shion lives in an exclusive area in No. 6. On the night of his 12th birthday, he rescues a boy who calls himself Nezumi (Rat). Nezumi ran away from the city's Special Security Area. From that moment on, Shion's life is changed forever...