Claymore (2007)

S1E6 Teresa and Clare

Having named the girl following her Claire, Teresa makes her way to Rokut to leave her there. While they camp in the woods that night, the man whose arm was severed returns, seeking vengeance. Surprisingly, Claire had managed to save Teresa, not just from him but from her own loneliness as well. Later, Teresa faces the bandits again, but this time they've crossed a line that compels her to take drastic and unforgivable action.