Klara originally started as an underground pop singer with traits of cuteness and the virulence of poison. Despite her attempts at promoting herself, she only sold about eight copies of her debut album. After that, she decided to try out being a Gym Leader as her new goal to boost her popularity. At some point, she obtained a GalarianSlowpoke. However, she gave up on that goal after two days of harsh training at the Poison-typeGym. She eventually learned about the Master Dojo thanks to a late-night TV show. After she saw how kind Mustard looked in the commercial, Klara decided to head to the Isle of Armor to train, believing she can become stronger without trying too hard. She quickly called the Dojo to apply.
She is first encountered by the player at Wedgehurst Station, obtaining the Armor Pass needed to visit the Isle of Armor. Before she can get on the train, a Galarian Slowpoke appeared, blocking the way, requiring the player to catch it. After complimenting the player's capture of Galarian Slowpoke, she went on the train to the Isle of Armor. She eventually reached her location and became a student at the Master Dojo. However, she focused more on being doted on by others and barely worked on her training. This resulted in Klara becoming lazy due to a lack of a rival and motivation.
The player meets Klara again once they arrive at the Isle of Armor. She challenges the player to a battle off the bat, assuming they are to be the Master Dojo's new student that she has been assigned to escort. After being defeated, she attempts to scare the player away from enrolling in the Dojo, and even lies to Honey about the student in question not wanting to show up, only for the player to eventually appear at the Dojo, much to Klara's shock. She threatens the player to not tell of what transpired. During Mustard's trials, her Dojo Uniform gets stolen by Mustard's three fast Slowpoke, which the player retrieves in short order. She battles the player over the next two trials, the former over a set of Max Mushrooms she claims discovered first, and the latter as part of a formal challenge. Klara cheats during the third trial by immediately summoning Toxic Spikes on the player's side of the field. She is eventually defeated and feels guilty about playing dirty. Mustard asks Klara to look after the Dojo Pokémon afterwards.
In the post-game, after Mustard has been defeated in a final showdown, Klara can be rematched daily.
In the Galarian Star Tournament, Klara reveals that she has become a minor division Poison Gym Leader. After becoming a Gym Leader, Klara adds a GalarianSlowking to her team, having it replace her Drapion as the lead of her team.
"Klara was originally an underground pop singer. She promoted herself as a star that had both cuteness and the virulence of poison. She energetically held live concerts and other events, even selling some Klara-themed collectables that she made herself, but in spite of everything, she only managed to sell eight copies of her debut album "Krazy for Klara." She decided becoming a Gym Leader would help her gain more popularity and has been working towards that goal since. She chose the Poison type because it matched her image and there was less competition."
Rare League Card
"The training at the Poison-type Gym was a lot harsher than Klara was ready for, and she gave up after two days. It was during this time she saw an ad for the Master Dojo during a late-night TV show. The master seemed kind, and Klara thought it would help her become strong without having to try too hard, so she immediately called in to apply. Normally, Klara's sole focus is to be doted on by others, so she puts only the bare minimum into her training, but recently a new student at the dojo has caused a change of attitude. She now works secretly with her Slowbro to better herself."
Klara uses these three Pokémon as both a partner and potential opponent in the Galarian Star Tournament. She will Dynamax her Slowbro at the first opportunity if her partner has not Dynamaxed or Gigantamaxed themselves.
During the cutscene where the player receives Klara's rare League Card, she can be seen training with another GalarianSlowpoke. Its relationship to her final team is unknown.
Klara was introduced as a Supporter card in the Pokémon Trading Card Game during the English Sword & Shield Series (the Japanese Sword & Shield Era). It was first released in the Japanese Peerless Fighters subset before debuting in English in the Chilling Reign expansion, with artwork by Ken Sugimori. It was also released as a Full Art card and Secret card in the same Japanese and English expansions, with artwork by Naoki Saito. It allows the player to put up to two Pokémon or basic Energy cards from the discard pile into their hand or both.
Trivia
Icon of RKS Laboratories, Klara's sponsor
The back part of Klara's headband is the same shape as the wings of a Dustox.
Klara's uniform number is "881", which can be read in Japanese as goroawase for やばい yabai, meaning "dangerous".
Klara and Avery are the only version-exclusive rivals.