Another Claymore known as Teresa has appeared in a town where she quickly dispatches a Yoma, with no effort. She is well-known as for her nickname "Teresa of the Faint Smile" because she never releases her Yoma powers. In the town of Teo, as soon as she arrives there she ruthlessly attacks any Yoma she senses and after the massacre a girl with no name who was with one of the Yoma seems to be very attached to Teresa. This girl ends up following Teresa no matter what she did.

After naming the girl who was following her, Claire; Teresa is heading towards the town of Rokut to drop her off. At night while they are resting in the woods, the man whose arm was chopped off is back for revenge. It turns out that the girl was able to save her and not from the man but to save her lonely heart. Teresa later encounters the bandits but this time they have done something unforgivable which forces Teresa to do something unforgivable.