He jumps up and lands on a roof and scans the area. He finds a robot walking around that looks like a Nuka-Cola bottle. He drops down and cuts it in half. It crackles and sparks and falls in half. It's voice crackles as it says "Have a great day at N-nuka Wo-world..." He crushes it's head just in case. He uses Amaterasu and burns it to ash. He gets all of the missing people and teleports back to Goodneighber. He meets up with the ghoul. "I got most of them. The others were executed. I can't even bring them back." The ghoul nods and some other people help the rescued get to a doctor. "Where is the device?" Izuku asks.
The ghoul hands over a hand-sized ball. "Here. This is the device, just keep it from breaking because we can't fix it." Izuku nods and teleports back to his house in Diamond City. He sees them both in underwear. "I don't have time. I got the device and heading out again." He quickly kisses them both and teleports to the destroyed Prydwen. He imagines the clone and the device turns into a flat plane with an arrow pointing North. He starts running North until the arrow starts to point towards the flat plane. He creates a quirk that lets him pass through objects and moves through the ground.
He eventually reaches a massive room full of white equipment and a red pool in the middle of the room. A synth rises from the pool and Izuku jumps down and stabs it through the head with hsi blade. It sparks and falls down. He looks at the device and sees it is pointing directly to a door way. He walks through and he sees his mother. Well, a clone. He runs forward to try to stab it but it turns around and blocks the attack. He round house kicks her but she blocks again. He jumps back and shoots out a massive fire dragon. She gets hit but the fire suddenly goes out. He activates his Chidori and zips up to her. He stabs her through the head but he gets repelled before it hits.
He looks into her eyes and he sees a Rinnegan.
"How-?" She teleports in front of him and kicks him across the room. He spits blood but heals quickly. He stands up and goes Baryon mode and they clash. She draws a katana and slashes at him. He blocks with the Kusanagi Blade and the katana snaps. He quickly cuts her head off and she falls to the floor. Suddenly a door opens to a gargantuan room full of his mother's clones. They activate and they all attack him. He dodges one but blocks another attack. He jumps up and creates a slash. Instead of silver or purple, it is a bright red. He slashes his sword and a second later the floor and all the clones are gone. Before he passes out he teleports to his house.