Balbina

Balbina (バルビナ) is a minor character from the Magic Side introduced in Toaru Majutsu no Index Light Novel Volume SS2.

Background
Balbina is a short girl with blue eyes and freckles and the things she hates the most are parents, teachers and missionaries.

Judging by Lidvia Lorenzetti's words, Balbina makes an habit of sneaking out of morning sermons and instead go to town in order to set up souvenir shops. Lidvia has described her as "an unintelligent little lamb in the middle of her rebellious age". Balbina is shown to be acquaintanced with Oriana Thomson and seems to be quite aware of Lidvia's strange antics.

She describes her activities of "gaining extra cash by ripping off tourist with wrongly advertised products with a big smile on her face" as "there is nothing wrong with a little part time job". She is seen always with her bag, and in there she carries many dolls and dried plants that have magical properties, from her items she is able to identify which magic properties they have, how powerful they are and how they must be properly activated in order to have an actual effect.

The Fourth Friday of February
At one point when Kamijou Touya was in Italy on a business trip he ran into Balbina while she was trying to sell souvenirs and rip off tourists. Touya approached her stand looking for a good luck charm but she tried to trick him into buying something else. He refused and before anything else could happen she noticed Lidvia Lorenzetti approaching and quickly packed up her stuff and ran off. Touya ran into Balbina around 5 more times throughout the day but each time she quickly packed up and ran off due to Lidvia's imminent approach. After finding out that Touya was trying to find a good luck charm to help against his son's misfortune, Lidvia ran off and dragged Balbina towards him. Once he explained that he was trying to save someone Balbina decided to help him with Lidvia. She then took out some strange dolls and dried plants out of her bag and imbued them with some minor magic and gave him instructions of how to use them to help against his son's misfortune. Afterwards she followed Lidvia to Oriana Thomson and explained to her why Lidvia was so happy. While Lidvia was going on about her meeting and how happy she was, Balbina ran off somewhere once again.

Design evolution
Balbina's design remains static throughout the series. Haimura states that he had little problem in drawing her, and only focused on making her adorable than moe.