Chespie/History/Mega Evolution Specials

Chespie first appeared in Mega Evolution Special I where it along with Mairin watched the between Alain and Astrid. After the battle, Chespie and Mairin went up to Alain when Mairin wanted to discuss to Alain about the different forms of and. Chespie and Mairin followed Alain around while he battled various Mega Evolved Pokémon. Later, when Mairin encountered a Yellow Flower, she had her Chespie battle her in order for Mairin to catch her. Chespie had trouble in the beginning as Flabébé was very fast. After Alain gave Mairin advice, Mairin had her Chespie use which weakened Flabébé enough and Mairin was able to catch her.

In Mega Evolution Special II, Chespie accompanied Mairin in Hoenn.

In Mega Evolution Special III, Chespie accompanied Mairin while she sneaked aboard a helicopter as Alain forbid her from coming. It protected Mairin from ice shards caused by the rampage of Primal and Primal  who was trying to get a knocked out Alain to safety.

In Mega Evolution Special IV, Chespie accompanied Mairin to Lysandre Labs. After Alain refused to allow Mairin to travel with him, she asked Chespie to give her a moment alone. This resulted in Chespie following two scientists to a room where it found a Core (Squishy) and some cells being subjected to some sort of evidently painful experiment. Chespie rescued Squishy after the equipment overloaded, but the energy Zygarde had been subjected to caused Chespie to fall into a coma, devastating Mairin.