The Villain the World Fell in Love With
She was meant to be just an antagonist — a character viewers were supposed to hate. Born on October 31st (yes, Halloween), Kuromi debuted in 2005 in the anime Onegai My Melody as an escaped prisoner from Mariland Forest, filled with a desire for revenge on My Melody — for 6,324 wrongs she had done to her. However, viewers didn't want to hate her. Too cute, too honest in her malice, too human in her flaws. Sanrio quickly realized they had accidentally created something special — and turned a villain into a star.
Black Beauty
The name "Kuromi" means "black beauty" in Japanese — and it's no coincidence. A white rabbit in a black jester's hat with a pink skull whose expression changes with Kuromi's mood. A devilish trident-shaped tail. A pink nose instead of yellow — like My Melody's. The design is a mirror image of her rival, but twisted into darkness. It's a contrast that makes both characters inseparable.
Authorship Dispute
Who really created Kuromi? This question became the subject of a legal dispute. According to Studio Comet — the animation studio that produced the anime Onegai My Melody — Kuromi was designed by their animator Tomoko Miyagawa. The studio claims that Sanrio only provided the character My Melody — the rest, including Kuromi's appearance, her name, personality, world, and plot, was entirely created at Studio Comet. Rejected working names for the character included "Warumi" and "Urami" (Japanese for: resentment, hatred). Sanrio, however, in the 2023 book The Secrets of Kuromi, attributed authorship to Hello Kitty designer Yuko Yamaguchi — with no mention of Studio Comet. In February 2025, Studio Comet filed a lawsuit for moral rights infringement. The case is ongoing. This is not about property rights — Studio Comet does not claim ownership of Kuromi — but about the right to be acknowledged as the creator. This is one of the more high-profile authorship disputes in the history of Japanese pop culture.
Rebellious Kawaii
Kuromi struck a chord with a generation fed up with sugary perfection. Gen Z fell in love with her for her "dark kawaii" aesthetic — dark, mischievous, yet still adorable. TikTok exploded with Kuromi outfits. Korea opened themed cafes. H&M and Bershka released collections. In 2021, she surpassed Hello Kitty in Sanrio's popularity ranking for the first time — and has remained at the top ever since.
Virtual Idol
In 2021, Sanrio announced Kuromi as a virtual idol — she released her first single "Greedy Greedy" and launched the "Kuromify the World" campaign in Shibuya. In 2023, she got her own anime Kuromi's Pretty Journey. In 2025, she debuted with My Melody in a Netflix series. In the 2025 Sanrio ranking, she took 4th place with almost 3.7 million votes — above Hello Kitty.
Collectible Series
🎀 Pop Mart × Sweet Besties
Kuromi and My Melody together — 12 figures + secret edition "Demon and Angel".
🦷 Labubu × Sanrio (2026)
Labubu dressed as Kuromi. Limited edition blind box keychains — sold out in minutes.
🎉 Sanrio Characters Party Series
Hello Kitty, My Melody, and Kuromi hosting a party. 12 figures + secret 1/144.
🍵 Re-Ment Sweet Tea Party
Kuromi and My Melody at a tea party — miniature collectible scenes.
Three Pillars of Creativity
Dark Cuteness
A skull that smiles — kawaii without sugary perfection
Villain with a Heart
Evil by design, cute in practice — an anti-hero we understand
Gen Z Icon
TikTok, streetwear, Netflix — rebellion in a kawaii package
Kuromi was supposed to be a villain. Instead, she became the voice of a generation that doesn't want to be nice — but still wants to be cute. A black hat, a pink skull, and 6,324 reasons for revenge. That's enough to love her forever.
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