
It's explained in the first few chapters. In the game, she had a special item that let her transform to a second character/account. But it has a level restriction, so when she de-leveled she could not use it. So now with the breakthrough pill, she is effectively the correct level for using the item, and thus can transform again. Since it is a whole new account/character, this form has a different set of skills from her doctor-classed normal persona, so is more psychic warrior-esque.

Yes, but the mad king is much stronger than her, she needs that power, and the only guy besides the ghost of Monarch that would probably recognize him is now dead (given how long ago that happened). And Monarch seemed reasonable enough - she could probably explain the circumstances to him before any fight broke out.
YAAAS FINALLY she got her mad king mode back, I wonder y she is able to take the form of the mad king though...is she the reincarnation of him or perhaps descendant? cant wait to find out. I miss the evildoer guy he was a cool character..maybe he will reappear? you know cuz hes a phoenix, the rise from the ashes thing. ╮( ̄▽ ̄)╭