Bel is a childhood friend of the player. Though she is somewhat unreliable and a bit of an airhead, she also has a strong side, as shown when she embarks on a Pokémon journey despite her father's strong opposition.
Like the player and Cheren, Bel receives a starter Pokémon as a gift from Professor Araragi at the start of the game; she chooses the Pokémon with a type disadvantage to the player's starter. The player will encounter and battle her several times throughout the game.
Bel made her debut appearance in BW013, when she is sent by Professor Araragi to deliver a badge case to Ash. Unfortunately Bel is a very clumsy girl and ends up knocking Ash and Dent into a nearby stream. Despite being older than Ash, she has only just started her journey due to her father not allowing her to become a Trainer when she turned ten.
Bel is shown to be very excitable, for instance when a Chillarmy stole the badge case and Ash attempted to use Oshawott to get it back, Bel commanded him to use Hydro Pump despite the fact that Oshawott wasn't her Pokémon nor did he even know that move (she later made the same mistake when she commanded Pikachu to use Thunder Wave). Bel is also shown to be a bit of a crybaby, which was displayed when her Chaoboo was unable to defeat Chillarmy.
She also had a battle against Ash, where she used her Chaoboo against his Pikachu. She lost the battle after putting up a hard fight.
Chaoboo is Bel's starter Pokémon that she got from Prof. Araragi. Bel attempted to use it to capture a wild Chillarmy that had stolen the dirty badge case that she had given to Ash. Though it has overwhelming power, it was taken down by Chillarmy with a combination of Hyper Voice and Tickle.
Bel later used Chaoboo to battle Ash's Pikachu. Even though it significantly weakened Pikachu with a powerful Heat Stamp, the Fire Pig Pokémon still lost the battle after a full on collison with Pikachu's Volt Tackle.
Chillarmy first appeared stealing the badge case Bel was delivering to Ash in order to clean it. Bel sent out her Chaoboo to battle him. He was able to dodge some powerful moves but using Hyper Voice and Tickle, Chaoboo had to be returned. Ash was about to send his Pikachu to battle the Chillarmy when Oshawott came out of his Poké Ball to battle him instead. Chillarmy dodged Oshawott's Tackle and evaded his Shell Blade before defeating him with a combination of Tickle and DoubleSlap.
Bel then tries tempting Chillarmy with a bowl and a dirty fork which seems to work but Chillarmy just carries the bowl away. They find where Chillarmy is hiding and Ash sends out Snivy who uses Attract which he counters attracting her, forcing it to be returned. Pikachu battles lastly, it seems equally matches but he uses his Tickle-Hyper Voice combination, all seems lost, but Pikachu uses Thunderbolt dazing it.
Bel then manages to capture him when he was tempted to clean her dirty Poké Ball.
Bel makes an appearance as one of the Pokédex holders of the Unova region, she is a good friend of Black and along with Cheren, recommended him to be the third Pokédex holder for Professor Araragi. Due to an accident, her and Cheren's Pokédexes are currently broken, leaving Black with the only working one.
Bel is a friend of both Monta and Cheren, not much is known about her, but although she is not as knowledgeable as Cheren. Her starter Pokémon was Oshawott at a type disadvantage to Monta's Snivy. She first appeared with Cheren, and after Cheren's lecture telling Monta his is inexperienced, Bel says he said too much. She then watches Monta and Cheren battle the Bike Gang King.
Bel, Cheren, and N are the only Trainers in Black and White with animated battle sprites.
When Black and White were first released Bel was widely misreported to be the Champion of the Pokémon League the first time the player challenges it.
Bel is Ash's first female rival in the anime, if one doesn't include Casey.
If the player does not choose Tepig as their starter, Bel is the only rival who uses more than one Template:Type2 Pokémon on her team, using Enbuoh and Shandera if Oshawott was chosen and Baokkie and Shandera if Snivy was chosen.
In Pokémon Adventures, her starter Pokémon has a type advantage over the protagonist's, which is unlike the games.
Names
Language
Name
Origin
Japanese
ベル Bel
бел bel, from Russian masculine for white in coloration; possibly from бял byal, Bulgarian for white. Also Celtic god of light. Another possibility is "Belle", French for beautiful.