Author's POV
Elrintyse was in shock of Y/N's word, she knew what he was trying to do. Y/N was trying to self destruct, taking both him and All For One out. Elrintyse didn't want him to sacrifice himself, she tries to talk out of it.
Elrintyse: Hey don't talk like that, we still need you, I need you. Think this through for me.
Y/N: Elrintyse, All For One is still able to move. We both know that a hero doesn't kill, unless if it's for a last resort. This is one of those times.
Both Elrintyse and Y/N knew that this is true. If All For One gets back up, he for sure will win. Everyone is down and no one has the strength to defeat him, all but Y/N. Well Y/N has a plan to finished him if he's going to self destruct. He looked at Elrintyse with a worried face.
Y/N: Listen I-
Elrintyse: If you worried about me don't worry, Nothing bad is going to happen to me once you died. I'll just be free since I become a part of you. No one can replace you at all Y/N. But I'm not letting you died here! There's gotta be another way!
Y/N: Elrintyse, we both know that All Might is barely alive. All thanks to your healing abilities back there.
Elrintyse: Heh, so you noticed during you went all rage on him. I only bought him some time.
Y/N: Which is another reason why.
Elrintyse sighed as she knew that this is the only way. She just doesn't want to see him die, she's delaying the inevitable. She trained Y/N, help him when he was young, she changed Y/N to who he is today.
Y/N: Elrintyse, I need you to promise me something.
Elrintyse: Y/N... of course, anything.
Y/N: Tell... tell Tsuyu that I'm sorry. Tell her that I had no choice and that this was the only way. I wish I could've be with her more, it's only been a week. *smiles* watch over her for me please.
Elrintyse: Of course Y/N, I'll watch over her for you.
Y/N smiles at this as they both saw All For One getting up very slowly. Elrintyse looks at Y/N with a nervous expression on her face. She didn't know what was going to happen next.
Elrintyse: So how are you going to do this?
Y/N: All For One can somehow absorb our dark energy. So I'll keep giving him dark energy, keep giving it-
Elrintyse: Till he overloads and becomes a bomb... he can't absorb your dark energy forever and he already obtain some dark energy before the fight somehow... Damn it, that's smart but I just-
Y/N notices Elrintyse have a tear in her eye, he immediately pulls her into a hug. Elrintyse hugs him back tightly, it's like a teacher and student moment. Y/N and Elrintyse have a bond that no one else have. Both of them were emotional, this might be the last time that they'll see each other.
Y/N: T-Thank you f-for b-being with me for t-the last damn e-eleven y-years...
Elrintyse: A-Always Y/N! Go get him.
They both look at each other for the last time as Y/N walks away to finish the job. Elrintyse grabs All Might but heard something she didn't expect. She heard movement, from Izuku's body. Izuku was waking up after Y/N knocked him out. This surprised her a bit but it'll make her job easier.
Izuku: Ow... Why did Y/N-
Elrintyse: Can you move Izuku?
Izuku: Ahh I don't know, Y/N hit me pretty hard...

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In Love With The Frog (Tsuyu Asui x Male Reader)
Fanfiction"A true hero isn't measured by the size of his strength, but by the strength of his heart." --------------------- After the death of Y/N's parents, all he wanted now was revenge. Revenge of who's responsible for all of this. However a demon known as...