This story ended up being very long so I split it into two parts.
Requested by stanforbabyblue234
Tokoyami and hawks were on patrol when they came across a fairly new villain. There isn't much about this villain beside saying that in order to change a person, you must change the person's past
Tokoyami: Senpai, watch out.
Hawks: huh [gets hit by a quirk]
Tokoyami: Senpai
There was a blinding light
Few minutes later
Hawks: what happened
Tokoyami: ...who is that senpai? [ points at the little boy that looks like he could be hawks's son]
Hawks: ...
???: w-who are you?
Hawks: I'm Hawks.
???: K-keigo...m-my name is K-Keigo.
Hawks: Hi keigo. I'm a hero.
Keigo: H-heroes don't e-exist.
Tokoyami: I'm Tsukuyomi. I'm a hero in training.
Keigo: h-hi
Tsukuyomi: Heroes do exist and the one next to me is a hero.
After putting handcuffs on the villain, Hawks turn to his kid self
Hawks: let's get you check-
Hawks: !?!?! where did he go?
Tsukuyomi: what do you mean? he's right over-
Somewhere in else, dabi was sent out to get supplies
Dabi: so annoying
Keigo: [wandering around and accidentally bumps into dabi] s-sorry
Dabi: ??? [looks down and sees Keigo] what's a kid wandering around near here
Keigo: I-I
Dabi: [couches down] are you lost
Keigo: ...
Dabi: ...let me show you something [lights his hand up making little designs with his blue fire]
Keigo: [instead of being scared, he was memorized] pretty [tries to touch it]
Dabi: [notices that the kid tries to touch the fire, pulls his hand away] don't touch it unless you want to get burned [extinguished the fire]
Keigo: [pouts] it's pretty
Dabi: [snort, smiles a bit] you're an odd kid [his staples shining in the light]
Keigo: shinny [grabs dabi's hand to stare at the staples] pretty
Dabi: ... [tries to pull his hand away] kid-
Keigo: no [clings to Dabi's hand] mine, pretty, shinny thingy
Dabi: maybe I can throw you at some hero
Keigo: no, don't leave
Dabi: Kid, I'm not safe-
Keigo: No, stay with me
Dabi: I-
Keigo: please
Dabi: ...fine
Keigo: [clinging to dabi's hand]
Dabi: what do I call you?
Keigo: ...
Dabi: I'll call you brat