Mysterious living beings named Aragami suddenly appear on Earth and begin to devour everything in sight. Determined to destroy every single Aragami, a youth comes to Fenrir Far East Branch. His name is Lenka Utsugi. Immediately, Lenka and his fellow enlistee, Kota Fujiki, begin rigorous God Eater training under their instructor, Tsubaki Amamiya. Itching to take part in real battles, Lenka’s wish unexpectedly comes true when Aragami infiltrate the Far East Branch. Even as anxiety heightens in the strategy room, Lenka’s resolve grows stronger.

Wielding his God Arc, Lenka rashly leaps into action to save Eric who is injured. God Eaters Lindow, Sakuya, and Soma of the First Unit arrive to help, but Aragami Vajra is powerful and Lindow and the unit have their hands full. Ultimately, Lenka is injured and falls unconscious, only to awaken in a holding cell. He is being detained for disobeying orders and is told by Tsubaki, “I should never have let you go.” Meanwhile, there is a girl God Eater who has left the Russian Branch, headed toward the Far East Branch.

Lenka returns from the successful mission to rescue Alisa and is assigned to the 1st Unit along with Alisa and Kota. He goes into the city for the first time at Kota’s invitation and learns of the existence of Aegis Island which is faintly visible on the water surface in the distance.

Lenka, Alisa, Kota and Sakuya are out on a mission to hunt two large-type Aragami known as Vajra when they encounter an unusual black Vajra that devours even its own species. This Vajra is ridiculously powerful and the 1st Unit ends up scattered. Lenka takes Alisa who has lost consciousness and escapes into an abandoned building. His God Arc is fractured and Lenka’s confidence takes a serious blow. Alisa, who also loses her God Arc in the fray, is overcome with terror as childhood memories of her parents being killed by the black Vajra come flooding back. But it’s not over for the battered and wounded duo as a pack of Ogretails threateningly advance toward them in the abandoned building where they sought refuge.