Kaiju no. 8

"With kaiju cataclysms transpiring across Japan, Hoshina heads into battle equipped with Numbers Weapon 10 and soon discovers that wielding the first-ever sentient kaiju weapon won't be easy. Meanwhile, back in the Oizumi area where Kafka is, six supergiant-class kaiju emerge, worsening an already grave situation. But just as things get dire, some unexpected backup arrives!"--Provided by publisher.