Slayers in a Heroic World

Ch.19 Unhappy Reunion

Disclaimer I do not own My Hero Academia nor Demon Slayer

I only own the Plot and Original Characters

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*Narrator Pov*

A small girl squirmed in her bed as a nightmare began to haunt her. It was one of her many torture sessions. Eri regained her memories during the first torture session she endured; it seemed the child that she was inhabiting couldn't handle the stress and gave her body to the Eri from the past. So she had to endure all the torture she went through every single day. It wasn't the first time she had been, but it wasn't an experience she wanted to repeat.

But it was all worth it in the end. She finally met him again, which was the whole reason she accepted the deal in the first place: so she could have a full life with him this time. Eri opened her eyes, showing she was on a hospital bed after she passed out from healing Izuku too much.

It had been a day or so since Izuku defeated Overhaul. Even though Izuku hadn't visited her once since the fight, she wasn't mad or anything. From what she saw, Izuku was still regaining his memories, and knowing that saving people was an everyday thing, he couldn't visit them all. And from the talks she'd heard from the nurses, it seemed UA was taking her in for protection.

Eri: Just wait for me, Dad.
—

Izuku walked down the halls of UA, returning to his dorms with a frown on his face. He had just left the support lab, which was going nice. The request he had put in is going well, and Mei was great, too. Well, besides all the inappropriate touching, he is pretty sure he doesn't need his measurements taken every time he comes to the lab. Wait a second; did she even use a measuring tape?

Anyways, what's gotten him frowning is his talks with the Patriarch. Who had told him the identity of the girl he had saved was the Patriarch's daughter from a long time ago? He means another lost soul he has to mess with, which was just a mess at this point. He was just tired of all this. Was it bad that he just wanted to get this fight over with?

Izuku made it to the dorm, and of course, his worst option was there. Eri was inside and seemed to be arguing with Momo. Yeah, he wasn't going to mess with that can of worms. That's when Eri noticed him and came running over with a large smile.

Eri: Dad!

Izuku: Oh boy.

Izuku saw the confused looks of his normal classmates as Eri came running to him. While the past looked at him with worry due to the situation he was about to be in. He sighed as Eri crashed into his leg and hugged it tightly.

Eri: We finally reunited; we can make up for so much lost time. And this time please don't go with that bitch Momo. I made a mistake making you date her, I should have pushed Ochaco.

Izuku: Woah, this is weird. Hello, Eri-San. My name is Izuku Midoriya, but I'm not your father.

Eri: Of course not. You still have to gain your memories. Once you do, we can-

Izuku: No, Eri. There are no memories to recover, I am not your father. I am...well, um your...god this is so weird. I am like your great times twelve grandnephew, or, um, I'm Momoka's descendant.

Eri stared at him for a long minute as if she was processing everything and her world was falling down on top of her. Her emotions changed at a rapid pace, to anger, betrayal, sorrow, anger again, and then to stillness.

Eri: I only took the deal because they said he would be here, but now he's not even here. This is just unfair.

Her voice was dejected as she just stared at the floor, making Izuku a little worried about her. He wanted to reach toward her like she was a child, but he stopped himself; this was a grown woman who probably wouldn't take it kindly being petted like a child. Plus, she was basically his elder as well.

Eri: After the defeat of the demons, I left my home and went to start my own life. Unfortunately, the Quirk Wars broke out not too long after, which I joined to try and make a difference like my father did. Though I perished in my 30s. Never knowing what happened to my little sister's family. So, your Momoko's descendant?

She stared at Izuku as if trying to find some similarities. Izuku blushed at how awkward this was.

Izuku: Yes, I am from my father's side. I also know who you are, Eri Midoriya. The orphan that was adopted by The Patriarch was considered as a daughter. You were listed in the family tree in the tome and had a chapter dedicated to you. I can show you if you want?

Eri smiled as she extended a hand to Izuku, which he shook.

Eri: I would like that, nephew.

Izuku: yeah still weird.

—

Izuku sat in a conference room with Mei at his side, and over a video call was Melissa with her father. Along with them was Nezu and Inko, all kept hidden from the rest as they didn't need to know this.

Izuku: How is the progress for the suit and the weapons I requested?

Melissa: Six out of the seven weapons you asked for are complete and made with the metal you supplied us with. The suit has been a little more complicated, but we had a template we were going to use for All Might, but it seems you're the better option.

Izuku: So, timeline?

David: 2 weeks for the final weapon, and about 2 months to make sure the suit is in peak condition. Baase, it should be done in a month. Now, let's talk about the compound you gave us.

The monitor shifted to two canisters, one of a deep toxic purple liquid and the other the opposite, a deep toxic green liquid.

David: We've had our biologist and chemist help us with this since we aren't that good at this field of science. We followed the recipe you gave us for the toxin to the tee, and I can say it is very effective. As you requested, we will try to make it stronger, but no promises. Not for the 'healing tonic' or maybe toxin with its effects it is also ready.

Melissa: However, Midoriya, it is extremely dangerous. Sure, it grants enhanced stamina, strength, and regeneration properties, but it is too extreme. One vial alone could destroy almost all your internal organs. It is too dangerous, and you want 12 canisters for the suit! You have to be insane. Is all this necessary for this villain?

Izuku: No, because it might not be enough.

That spread a chill throughout the room as Izuku nodded to Nezu, who sighed as he put a vial of blood on the table. A vial of Eri's blood that Izuku took during the time she was in the hospital.

Izuku: This blood comes from a girl with the ability to rewind an object. We will send it to you and use it on both to see if it enhances the effects. Please, and thank you.

Melissa and David looked at each other before nodding as the video cut. Izuku sighed as he rubbed his eyes. Mei patted his shoulder as a form of comfort. It wouldn't be long until Izuku would have his final battle; he wasn't sure why, but he knew it would be bloody. And he needed every card available to even stand a chance.

Hopefully, he would be ready.

*End of Chapter*