Introduction:
For some reason, Vongola is facing the fate of being on the verge of destruction. In desperation, Sawada Tsunayoshi decided to travel back to his body twenty years ago, and decided to kill the Six Paths Skull before he became a threat.
Meme comes from the book: Traveling Through Time and Space to Kill You
High abuse and caution
preface
He turned the whole world upside down just to be with that person, but he never thought that after the world turned upside down, they would already go their separate ways.