Was Yoru Regenerating from the Explosion of the Nuclear Punch, an High-Mid or Low-High Regeneration feat?
From what those regenerations require:
High-Mid: The ability to regenerate from being blown/cut to pieces, brain included, or from a small piece of the user's body, such as a finger, or the heart.
Low-High: The ability to regenerate from having no solid parts of the body remaining. Such a state can range from a puddle of fluids to a single cell. For robots and machines, this can also include regenerating from a liquid state.
I doubt that Nuclear Punch straight up turned her entirely into ashes for it to be Mid-High, as it should be based on the vidible small part of her remaining head, logically as the explosion of the nuclear Punch has already ended, Yoru would had already a bit of regeneration for reaching a head
So likely Low-High?