help:(

im searching for a manga (i think it was a manga or manhwa but also has an anime) where there's a boy whose running and then he enters a magic school and meets the director for a moment who teach him a spell i think, and later he keeps running away and meets a girl who was with a larger group and they assault him and he defends himself with magic, later on he enters the magic school and meets this girl but the girl now has a nice personality and is not a brat anymore