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.

Two more Claymores have appeared, Sophia and Noel who have entered a town that has become a Yoma hive, don't require much effort to eradicate the hordes of Yoma. There are still some Yoma left but that is until Irene nicknamed, "Flash Sword Irene" finishes them off. Following Teresa's betrayal, the number 2-5 Claymores have gathered with orders to execute Teresa, but who is the remaining Claymore yet to arrive? The ultimate battle between Claymores is about to begin.

Continuing where the battle left off, Teresa of the Faint Smile will now have to face the Numbers 2-5 Claymores, who have released their full power. Knowing that she has never need to release her power, how will Teresa fair against these tough opponents? Overcome by her emotions, Priscilla surpasses the limit and becomes what is known by an "Awakened One".

The Organization is getting uneasy of no. 47 Claire, after receiving no contact from her for three months. Following recent events, they end up taking drastic measures by sending out a Claymore on the mission to find Claire and it's made top priority. Meanwhile Claire is searching for Raki but while doing this a Claymore expedition team pass through the town, to hunt down an Awakened One; in the mountains nonetheless something seems odd about the situation.

The immense battle between the partially Awakened Claire and Rigardo is now over, though Claire has paid a terrible price for this and is on the verge of completely Awakening. Priscilla is able to sense this from afar and is so frightened that she runs away. Nonetheless she cannot run away from the past she thought she forgot, as her memories return and she is forced to remember about her family, about herself and of course "Teresa". An epic battle is about to commence.

In the middle of an active volcano, Claire and Priscilla are finally going to face-off and even in her partially Awakened form Claire is still not any closer to being a match for former no. 2 Priscilla. For whose sake is Claire willing to risk her life for? Just when Priscilla was about to finish things Miria, Helen and Deneve arrive just in the nick of time, although what can they do against this formidable foe, who hasn't even shown her latent power.

The battle between the two awesome powers Claire and Priscilla reaches its climax as Claire somehow manages to gather the strength and determination to go on. Raki and Jeane have also arrived to witness the bloodbath that is about to begin, yet what will be the overall outcome of this battle?