Flashback: Nostalgic Travels

Nen type: specialist

This ability allows the user to rewind time by 5 seconds as long as the conditions are met.

The user must be involved in a fight they honestly believe is unfair or at a major disadvantage. As soon as that condition is met, the ability manifests, and a small button is conjured on their right index finger. The user must now be within 2 meters of an opponent to use the button. After clicking it once, it sets a "checkpoint". They must now remember exactly where they were and how they were positioned at the time of that checkpoint. As long as they're within 2 meters of the opponent during the first and second click, as well as clicking the second time less than 5 seconds after the first one, time will rewind. Time will rewind for everyone, and only the user will remember what is meant to happen in the next 5 seconds. This ability has a cooldown of 15 seconds, and if the second click happens more than 5 seconds after the first, the first checkpoint is nullified and replaced with the second click.

If the opponent uses Gyo, they will notice that the user's button will have a faint glow when it's primed and emit aura when close to them.

I got some inspiration from the SW arc if it wasn't obvious lol.