Six Lifetimes of Reincarnation

"Kufufufu..." "Mukuro, make that sound again and I'll break your trident and stick it in your pineapple head." "Didn't you plant that laugh in my subconscious? Kufufufu... I'm sorry!" "Hmph!" The pairing is 691869. The top and bottom haven't been decided yet. The great woman just now, who dared to mock Rokudo Mukuro's laugh and hairstyle, is a girl who transmigrated. Don't worry, she's only a supporting character. Still, as a transmigrator, she does get a perk: she dies and becomes Rokudo Mukuro's teacher. Since the author loves researching canon and then turning it upside down, the general direction of the Katekyo Hitman Reborn! plot probably won't change, but the details... please pretend you didn't see them! The Prince of Tennis and Bleach may pop up from time to time. That's all~