Korrina — Pokémon Character Profile

At Shalour's Tower of Mastery, the player first battles Serena or Calem for the chance to receive a Mega Ring. After the player defeats Korrina at her Gym, she invites them to the tower's top floor and gives them that ring. One of her Lucario, already interested in the player's aura, temporarily joins the player for a one-on-one Mega Evolution battle against her other Lucario. The player can keep that Lucario afterward, along with its Lucarionite. Korrina's lesson thus involves entrusting a promising Trainer with one of her own partners.

After the main story of Pokémon Legends: Z-A, the player discovers a letter and a Lucario left by AZ in a room at Hotel Z. The letter explains that Korrina previously gave AZ the Lucario because she wanted him to be safe; the Pokémon also lists Korrina as its Original Trainer. AZ has died by the time the player receives this gift. This post-credits connection precedes Korrina's on-screen return in Mega Dimension.

In the Mega Dimension expansion, Corbeau asks Korrina to help Team MZ investigate distortions around Lumiose City. After a battle with the player, she joins the investigation and accompanies the player and Urbain or Taunie into Hyperspace Lumiose. They take on dangerous Rogue Mega-Evolved Pokémon while the distortions increasingly threaten the city. Her return also gives her a more expansive goal: becoming skilled with every form of Mega Evolution, not just Lucario's.

Mega Dimension gives Korrina a new look, including longer hair arranged in a ring-like style and an outfit with bright, contrasting colors. She carries several Mega Stones and retains a Key Stone on her glove. In the optional side mission Ultra-Hardcore Lucario Showdown!, she battles the player with a level-100 Lucario capable of becoming Mega Lucario Z; the player must bring just one Lucario to accept the challenge. These encounters belong to her later appearance, not her original Shalour Gym battle.

The group eventually learns that Darkrai is the Pokémon sustaining Hyperspace Lumiose. As part of Operation Mega Donut, Korrina joins the player and Urbain or Taunie in Hyperspace Newmoon Nightmare, where they confront and capture Rogue Mega Darkrai. Its capture halts the expansion of Hyperspace Lumiose, although the other dimension continues to exist. Korrina shares the work and danger with the team rather than defeating Darkrai alone.

Korrina remains involved when Team MZ turns to Ansha's hope of finding Rayquaza for her mother. The investigation leads the group into battles with Rogue Primal Groudon and Rogue Primal Kyogre, then to Hyperspace Sky Pillar. There the player and allies capture Rogue Mega Rayquaza. Ansha ultimately asks the player to look after it until she is old enough to become a Trainer herself. Korrina's last major story involvement in the expansion is as one of the companions helping bring that adventure to its conclusion.