Mukuro-Archaic speech and along with her backstory, was one of the most interesting characters introduced in the series. Parallelism between her and Shidou of being orphaned. Her rampage was so tragic since, ironically, it was only really filled with pure and innocent love.
Miku-had to put up with her introduction, tested my limits on how annoying a character could get on my nerves. After being sealed, she brought a new lively tone to the group gradually becoming such a fun character.
