@beginninganimator
Edit; making a post as this is a bit too long for a reply and can cause clutter in replies which are already a bit cluttered
Really sorry if this is too long, or bad, or doesn’t work. I’ll understand.
Even if this doesn’t work I had fun making milky lore! So don’t worry about me feeling bad
Really Sorry for the wall of text 😓😓😓

Forgive me if it’s bad

Here’s the lore in any case:
What happened
A ultra powerful god, Dhamrasil, created a avatar. This was milky but currently it was akin to a simple AI, just following orders and doing what the god wished. The god had its own avatar but Milky was just one to do his bidding.
Dhamrasil noticed the dimensional hopping caused by Mellow and desired it for himself.
He sent out Avatar!Milky to retrieve it and kill whoever used it.
Milky fought against Mellow, almost killing him due to Milkys ultra reality breaking powers given by being connected to the god but Mellow put the mask he has on Milky, giving him a sentience and making him a person.

Milky, now a sentient being, took a second to think and realized he was being used. He gave the mask back to Mellow before hopping back to his Gods personal dimension.
He has a all out reality ending fight with Dhamrasil’s main avatar, after beating off the avatar Milky makes a dash for the gods main source of existence, channels all of his connection to the god and destroys the gods life, dimension and existence.
Milky was now stranded in a point between universes, and not having the gods reality breaking powers anymore due to it being dead stayed there for thousands of years. Surprisingly he stayed sane, after all he is no stranger to long periods of doing nothing.
Eventually he was picked up by mellow (time passes differently to those within universes) and was brought back to a universe again.

Where it happened
The fight with mellow
A canyon caused by Avatar!Milkys arrival, a empty horizon in the background.

Who it involved (famous)
Mellow, Milky and Dhamrasil

Why?

The god wanted the mask, mellow’s mask gave milky sentience and milky felt used by the god.
Effects
Dhamrasil is dead and Milky is not a free spirit and person and friends with mellow.
Milky also no longer has his reality breaking powers due to killing Dhamrasil.
How old?
Took place in 2020(or thousands of years ago?)