[Katekyo Hitman Reborn!/Hakuouki] Going Our Separate Ways

Synopsis: For some reason, Mukuro Rokudo has joined Byakuran and is trying to destroy the entire □□ world. The Vongola family faces imminent destruction. With no other choice, Tsuna Sawada decides to transmigrate into his own body from twenty years in the past, intending to kill Mukuro before he becomes a threat. Inspired by the book Transmigrate Through Time and Kill You. Highly angsty. Read with caution. Prologue He turned the entire world upside down just so he could be with that person, never realizing that once the world was turned upside down, they would already be heading in opposite directions.