Translation note:

Camper Liam is the first Trainer found in Pewter Gym in Pokémon FRLG.

The title text is a reference to his dialogue:

(before the battle starts) "You're ten thousand light-years from facing Brock!"

(after being defeated) "Light-years isn't time... It measures distance!"

(if spoken to again) "You're pretty hot. ...But not as hot as Brock!"