Oriotorai has instructed her students to try and hit her during P.E. No one's even coming close until Tori shows up and baffles her so badly that he manages to sneak in a grope attack. He then announces his plans to ask Horizon out.

Despite a difficult past and a despairing outlook on the future, Masazumi Honda desperately wants to become a good politician who understands the people.

Tori and his friends are busy preparing for their big day, each in their own way. Meanwhile, Masazumi is investigating the history behind Remorse Way.

The firework show is drawing near, but the fireworks may not be quite what everyone had expected. The few remaining residents of Mikawa are forcing the Platonic Plate Reactor to meltdown, and they'll stop anyone who dares get in their way.

Muneshige fights valiantly to prevent the reactors from going critical, but to no avail. Lord Motonobu announces that the only way to stop the apocalypse is to gather all nine Armors of Deadly Sins, one of which is located inside of P-01s.

Musashi is caught in the middle of dirty politics, with the Testament Union trying to take the upper hand. After carefully reviewing their current situation, Tori and his classmates decide what their first course of action should be.