Albert: Follow me.
Albert guided the group into another part of his house, which contained many books, potions and other materials for magic.
Albert: You may not like it, but I will do a ritual for each one of you individually. Except you Abaddon. I beleive you are strong enough to fend for yourself.
Aizawa: Ritual?
Albert: Indeed. This ritual will give you a boost in your abilities and will allow you to fight off demons much more easily.
Endeavor: What exactly are you planning to do wizard?
Albert: I will infuse you with purified hell flames.
...
All Might: Excuse me?
Albert: As you heard, purified hell flames are the best chance any of you have to fight off demons. The pure hell flames mixed your quirks will become the ultimate weapon against demons. Now who volunteers to go first?
Nobody did until...
Gran Torino: I will go first, you are all pancies!
Albert: Very good then.
Albert drew a circle in the ground with a bunch of symbols on it, which no one besides him was able to read.
Albert: Mr. Torino, please stand in the middle.
Gran Torino did as told and stood right in the center.
Albert: It wont hurt.... Much...
All Might: Wait what?
Albert clapped his hands and brought them forwards. Suddenly out of the circle blue flames emerged and they engulfed Gran Torino.
Gran Torino screamed, he felt the heat and like if he was being burned, but the flames werent burning him down.
All Might/Angela: Sensei!
Endeavor: What are you doing to him?!
Albert: Dont worry, he wont die, it will be over soon.
As he said that just as abruptly as it started it ended. Gran Torino fell to the ground. Angela ran to his side.
Angela: Are you okay?
Gran Torino: Dont worry kid, but that certainly was an unique experience.
Albert: Try using your quirk.
Gran Torino stood and activated his quirk jumping all around the room at even greater speeds, he also left a small trail of blue flames behind him, he then kicked All Might in the head and sent him flying to the wall.
Gran Torino: I am much faster then before, even my kicks are stronger!
Albert: Indeed, they will be even more effective against demons since pure hell flames actually affects them unlike humans.
Todoroki: Really?
Albert: Yeah even normal punches, since they are infused with pure hell flames they could kill low-tier demons and severely hurt upper-tier ones.
Aizawa: Now we can stand a chance.
Albert: Yes we can. Let us continue.
One by one the small group of heroes went through the ritual and had pure hell flames succesfully implanted in them, they all saw an increase in their base abilities such as strength, speed and reflexes, and that combined with their quirks meant they could now fight. Todoroki amd Endeavor could both now release pure hell flames at will instead of normal ones, Bakugo's explosions now also had pure hell flames in them, which meant they would now be effective against demons, Aizawa now when he used his quirk could nullify a demon's use of magic, Angela's and All Might's punches were now infused with pure hell flames so they would now be extra-effective against demons.
Albert: All Might come here for a moment please.
All Might walked to Albert, meanwhile everyone else was excited for their new abilities.
All Might: What is it Mr. Albert?
Albert put his hand in All Might's wounded side and pressed it. All Might felt pain and then a small sensation of burning. Albert stepped back after a few seconds.
Albert: I healed you, you have to be in the best condition to be able to fight.
All Might: H-how did you know?
Albert: Magic, I could feel there was something wrong with your vital force. Then I just focuses and sensed what was wrong.
All Might brought his hand to the side and felt the wound was gone.
All Might: Thank you ver much!
Albert: It was nothing, Now..
He turned to the rest of the group, which in turn turned to him.
Albert: I beleive we are ready.
In a restaurant in Kyoto...
Screams could be heard around the place. A few hurried steps could also be heard as they were running away from something or someone. We can see it was a little girl that was running as fast as her little legs could carry her. She suddenly stopped as she saw she had reached a dead end, the body of one of her dead friends lied on the ground.
???: There is no escape.
The girl turned around and saw a man standing there with the corpse of a kid in one hand and a knife in the other.
Girl: P-please no...
???: Hahahaha sorry kid, I just love doing this so much.
We can see now the dead body of the girl lying on the ground. The man then looked to see a giant golden plush lying on the ground, the man picked it up and sliced its head off from it.
???: I will keep this as a memory.
He turned and prepared to leave.
???: Humans.... Killing them brings me much pleasure!
The man went to a room, he dropped the bear head on the flooe, he then snapped his fingers and all the blood stains in his body and clothes disappeared. He then sat down on a chair and rose his feet to the desk.
Suddenly a flash of light appeared and it blinded the man for a second. He then reopened his eyes and saw Izuku standing there in the room, smiling at him.
Izuku: William my friend! So here you are!
William: And here I though I was going to be able to relax. What do you want?
Izuku: I need your help my bloody old pal!
William: What if I refuse?
Izuku: Oh hoho, I know you wont, after all, I am the only thing keeping them away.
William shivered, he looked at Izuku and ruffled his hair to distract himself, he felt the stares of them behind him.
Izuku: And I also dont think you want to go back there do you?
William stood up and watched the mirror, though it wasnt exactly him what he was seeing.
William: I really dont.
Izuku: I thought so! So now my little bunny, lets talk about your mission...