Saving the Villainous Boy with Righteous Arguments (Naruto + Jujutsu Kaisen)

Thirteen-year-old Geto Suguru and thirteen-year-old Uchiha Obito met.

The justice-minded boys were told, "Your future selves will become major villains." Unable to believe it, they nevertheless chose to travel ten years into the future and see those versions of themselves with their own eyes... and that's where the story ends.

Geto Suguru/Uchiha Obito: So I really am a bad guy!/So he really is a bad guy!

Theme: First things first, be a good person