A chronologically impossible scenario, such as a character meeting their older or younger self, or two characters from different time periods meeting, even if one of them should be dead or shouldn't be born yet.

For example: Asahina Mikuru meeting adult Mikuru, Revolver Ocelot meeting Major Ocelot, or Altair meeting Desmond Miles.

Examples

See also

• age comparison
• alternate universe
• anachronism
• Doraemon Darake
• dual persona
• in-franchise crossover
• time travel

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