¡Adiós, Punklorde!

This is Silver Wolf's companion mission, and requires you to reach Trailblaze Lv 21.

This achievement has no cultural references in the English and Chinese versions. It is likely specific to the game. Punnklorde is a cyberworld known for hackers, gamers, and the invention of aether editing technology. It is a planet made of data and symbols, where the edges of reality and illusion are blurred. Silver Wolf is a playable character from Punklorde who left her home planet to join the Stellaron Hunters, so I suppose it's her saying "Farewell, Punklorde!" while being a menace to Herta.