Aizawa had been called up to Nezu's office. He was about to knock on the door when it opens before he gets the chance to.
"Aizawa, please come in and have a seat. Would you like some tea?"
"Please just get to the point."
"Sit"
Aizawa sits down a bit wary of Nezu's tone.
"Oboro Shirakumo is Kurogiri the teleporter"
Aizawa sits there processing the information. His friend that died saving people had been experimented on and turned into a fog person.
"... How do we know it was him?"
"That requires a whole other explanation. Do you know of All for One?"
"The quirk thief? I've heard rumors but... he's real isn't he?"
"Yes, very much so. I believe that Oboro was not supposed to die that day. All for One's target was you. Oboro was an unexpected success. "
Aizawa remained silent.
"Now onto how we know of this. I believe that it would be best explained by Midoriya."
The office door opened revealing Midoriya with a serious face. He explained his history with All for One and the true nature of his quirk excluding One for All. Aizawa sat there silent until.
"When I took the quirks off of Kurogiri I had taken cloud and GPS. We believe that these two quirk combined to allow teleportation."
"Where is he?"
"He should still be in police custody-"
Aizawa gets up and leaves the office.
"Is he gonna be okay?"
"He'll be fine"
The office door suddenly opens to reveal detective Tsukauchi.
"The lab results came back from the hand. It belonged to a deceased Kotaro Shimura."
Izuku's body began shifting until Nana appeared beside him and with an apprehensive face asks.
"What happened to my son?"
Tsukauchi was a bit weirded out by this and looked to Izuku who explained who she was.
"Well Mrs Shimura the hand Izuku had taken from Shigaraki belonged to your son Kotaro who was declared dead over a decade ago. Him and the rest of his family went missing in their home. Their property was turned into a crater of dust. After testing the rest of the hands found on Shigaraki, they were identified as the missing Shimura family but one person was unaccounted for Tenko Shimura."
Nana processes the information as Nezu decides to confirm something.
"Tenko Shimura is alive"
"Fact"
"Shigaraki used their quirk on the Shimura family."
"Fact"
"Shigaraki is a part of the Shimura family."
"Fact."
The detective eyes widened at the implication.
"Shigaraki is Tenko Shimura."
"...Fact"
Nana leaves without a word to confront her grandson. Along the way he sees All Might and calls out to him.
"Toshinori!"
Nana grabs All Might and drags him with her to the station. She uses his clout to get to talk to her grandson.
Sitting in an interrogation room was Shigaraki hand cuffed to the table his head down wondering who else was going to speak to him after the last guy. He has been trying to use his quirk but he can't for some reason. They must've put quirk cancellers on him. The door opens to a raven haired woman who looked strangely familiar to him but he didn't remember where. A slight headache strikes at the thought. She sits in front of him and is looking at him intently. With a raspy voice he asks.
"So what the hell else do you heroes want to know?"
She frowns at the question.
"... does the surname Shimura mean anything to you?"
Another headache clashes as the name was spoken. His head now in his hands, he grunted at the pain.
"... it... means... nothing to me"
"Tenko Shimura."
"Ahhh!"
He presses his head into the metal table trying to surpress the pain. Nana allows him to collect himself.
"... That's... my name?"
He responds his voice smoother, calm.
"Do you remember what happened to your family?"
"... I killed them with my quirk. Dad kicked me out for finding picture of grandma."
Nana teared up at that and was angry her son would do something like that.
"I was petting Mon-chan when he suddenly turned to dust. I cried confused why had this happened. Hana came out she turned to dust along with mom. Dad saw what happened and I killed him. It feel good. Retribution for what he had done to me. He hated heroes. He hated grandma. He hated what I was."
He was suddenly pulled into a hug by Nana. Tears wetting his head.
"I'm sorry I had to leave. I'm sorry..."
Shigaraki didn't know what to do but this felt nice. To have someone touch him without the fear of his quirk killing them. The tender love of family. Nana pulls away and he gets a good look at her.
"Grandma?"
"Yes Tenko. I'm Nana Shimura your grandmother. I never should have left you alone."
"What happened? Why were you gone?"
"I was going to fight All for One. I didn't want him to find my family so I put your father into an orphanage. I told All Might to not contact him because that might have lead All for One to him. I couldn't take that risk. I died fighting him and he wanted to use you to go after All Might."
"But he saved me. When no one cared not even the heroes."
"He had his hands and eyes everywhere. How long were you alone before he found you?"
"A few hours I tried to get help but they all ignored me. A hero saw me and looked at me in disgust."
"He must have known that you would have been perfect to be moulded in his own image and use you to throw off All Might."
He pauses to at the realization that his life with his sensei was a fabrication
A ruse to mold a perfect villain. A tool to destroy whoever he sees fit.
"All for One is ali-"
Black sluge began to pour out of his mouth. Nana shocked by this knowing All for One had plans for him.
"Tenko don't let him know you remember. We'll get you out soon."
The interrogation room fades from view and replacing it is All for One who can seen connected to many machines keeping him alive.
"Tomura I hope your stay at the precinct wasn't too unbareable."
Tenko gets up slowly and gets into his previous persona.
"I'm sorry I failed to kill All Might master. If that green haired brat didn't disable the nomu it would have been so much easier."
All for One shuddered at the mention of the boy. He activates quirk sight and sees that Tomura was now quirkless. This was not good and now that the nomu and Kurogiri was captured. It was more than likely that their quirks were taken too. No matter they could just rebuild. Now he needs to replace the his student's quirk. Thank god he always had copies. After all, one is none, two is one. If its important always have a backup.
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Next Time
Chapter 18 : Sports Festival
Thank to Somobody1owe8, JokerJay75, need_sleep123, Antisuperstar, RcMmCr, Infernoscorpion1, AdamKlydeUy, jtwebster, sswxve, juicethe2nd, CrossChara552, Fenrir_52, NONCONTRIFIED81, Tahir0464, MRFRITS1, and N0hoes for voting.