Bijou, a female hamster with white fur, consistently wears distinctive blue ribbons to secure her pigtails. She lives with her owner Maria, having moved from France to the series' neighborhood. Her personality blends elegance and tidiness with a readiness to compromise her appearance when helping friends. She forms strong recurring friendships with fellow hamsters Pashmina, Penelope, and Sandy. Bijou harbors a notable crush on Hamtaro, sparked in "Come Out, Bijou!" when he complimented her ribbons, causing her to blush. Hamtaro remains unaware of her feelings, maintaining a platonic relationship. Concurrently, hamster Boss holds a significant crush on Bijou, which she interprets as brotherly kindness, oblivious to his romantic intent. Her character evolves in "Bijou's In Love!" (episode 197), where witnessing Lapis kiss Hamtaro’s cheek triggers distress and perceived rivalry. This leads Bijou to attempt separating Lapis from Hamtaro, including spreading negative remarks. Her behavior resolves when Lapis clarifies the kiss was gratitude, not romance, and similarly kisses Bijou’s cheek in thanks, restoring Bijou’s demeanor and forging their friendship. In non-anime media like *Hamtaro: Ham-Ham Heartbreak*, Bijou and Hamtaro are referenced as a couple, though Hamtaro expresses confusion about their relationship. Supplementary merchandise, including a LINE sticker, depicts them sharing a kiss, indicating romantic connections outside the anime. Linguistically, Bijou appends "dechuwa" to sentences in Japanese, sharing this trait with Oshare, another French hamster. The English adaptation gives her a French accent and high-pitched voice. Her name, meaning "jewel" or "small trinket" in French, aligns with her refined portrayal. Trivia notes include her early manga depiction (*Hamuchanzu de Gozaimachu! Vol.1*) as Penelope’s sister with knitting hobbies, later reassigned to other characters in the anime. The French dub altered her origin to Russia.