Shido learns the truth about his and Kotori's powers, and Origami reveals more details about her past.

Shido Itsuka is an ordinary high school student living with his little sister in Tengu City, a city that is often disrupted by "spatial quakes." During a spatial quake at the beginning of the school year, he meets a beautiful and mysterious "Spirit."

The "Smart Safe" has come to the Greater Tokyo Bank. Created by the Hirameki brothers, a pair of inventors, it's a safe that analyzes the "brain power" of anyone that tries to open it. Not only that, but unless the brain power reads as 0, it won't open under any circumstances. Lupin is goaded by Fujiko and Jigen to try and crack the technological wonder, but his brain power is rated at 300! What can he do against this peculiarly secure safe?

The Hero Faction has arrived and Cao Cao wants to cross blades with Azazel and the Red Dragon Emperor. In such a dire situation, Issei must respond quickly so all his friends make it out of this alive. Will he ever find his "potential" and release it?

Asta, Gauche, and Theresa go to find the abducted children. Gauche is able to track the faint trace of mana from the magic mirror that Marie always carries with her. On their way there, Asta spots Marco in the snow and goes to him.

Riku and his friends have decided to start their own force. Although they are excited to discover their own unique style and strength by forming a force, they are having trouble choosing new members. Shahryar advises them that if they're aiming for the top, they should scout someone experienced, and draws their attention to the splendidly built Kapool that Momo has rented.

While the rest of the Tiramisu crew has a morale-boosting session with the captain, Subaru is getting excited about something else. What merry Holy Night festivity has Subaru always longed to partake in?

Hadaebou's attempt to retrieve Tadanaga from Mukakumo Castle does not go as planned. Hachirou appears before the gathered ninjas of Kouga and Iga, faced with an enemy he cannot defeat alone.

The day has finally come for Aoi's eatery to open. With the name Moonflower from Matsuba, she opens it in great spirits; however, things don't seem to go so well at this unluckiest place in the northeast area.