Once a time. There was a character -

they were pretty brave and somewhat strong

they were also hanging out with their friends sometimes

Until, they got corrupted by some Entity?

Nobody knows how and why and where did it come from.

The corruption wasnt instant, but it slowly grew overtime

They started to change slowly, their personality, appearnce, ect.

They started to forget their previous original self, Not only them but everyone who knew them started to forget too, even the universe.

They got stronger and stronger stronger and stronger stronger and stronger stronger and stronger stronger and stronger stronger and stronger stronger and stronger stronger and stronger stronger and stronger stronger and stronger

to the point where the character became BLANK

to the point where it became the DEVIL's VESSEL

You cant undo it, No one can! its like trying to fix wood that has been burned to crisp!