The time travelers return to the future, and learn the true history of their world. Though they were unable to change the past, they are determined to correct the present and shape the future.
Nana sends Jail, Lynn, Pele and Hina 300 years back in time. They arrive at an unknown institution with technology far superior to the world they are accustomed to, and meet Rihito, a young man Hina is convinced is Licht himself.
A voyeur is regularly sneaking a look at the girls' bath, and the students are tasked with catching the culprit. Meanwhile, Jail attempts to find out more about this timeline and figure out why Nana sent them here.
Jail reveals his true Count of 12500. He even overtakes Licht in raw speed, Licht's specialty. As the townsfolk and Lynn look on, Licht is backed into a corner.
Jail, Lynn and Pele enter the town of Linden and discover that its inhabitants were annihilated by an unknown entity. Jail is confident that Licht must know something about this.
Licht and Mizuka have returned to their normal selves. While the ladies in the group suffer the consequences of Licht and Mizuka's unresolved Star Stake, Jail receives an order to report to the supreme commander of the military.
With Mizuka subdued, the only opposition facing Licht is Doan. Doan traps Licht in a prison of gravity, from which there is no escape. Hina, however, still believes in Licht.
Jail discovers more secrets about this world through Nana, but is intercepted by Alan during his escape. Meanwhile, the students of Class A come closer to realizing their dream of becoming a military force that does not take human lives.