Rainbow Eyes and a Gentle Smile Hide the Cruelest Winner
Doma is not an obvious rainbow mascot. As Upper Rank Two of the Twelve Kizuki, the demons serving directly under Muzan Kibutsuji, he is among the strongest enemies in Demon Slayer: Kimetsu no Yaiba, and his rainbow-colored eyes are his visual signature.
That contrast is exactly what voters cited. One reader wrote that his "rainbow eyes are beautiful and his speech and manner are calm, but his true nature is extremely cruel," calling the gap between the look and the behavior the essence of his creepiness. Another noted that rainbows usually carry positive meanings, but in Doma's case the color seems to symbolize a coldness that cannot understand human emotion.
He is also fresh in voters' minds. Doma appears in Demon Slayer: Kimetsu no Yaiba Infinity Castle, where his fight with Insect Hashira Shinobu Kocho puts his overwhelming strength on display, and Aniplex has been running a character promo built around him. Doma is voiced by Mamoru Miyano (Light Yagami in Death Note). The film arrives on Blu-ray and DVD in Japan on July 29, 2026.
A Reader Poll Timed to Japan's Rainbow Day
July 16 is Rainbow Day in Japan, a date chosen for the wordplay of nana (7) and iro (16), which together read nana-iro, or "seven colors." Japanese anime news site Anime Anime marked the occasion by asking readers which character they most associate with rainbows, whether through a "niji" in the name, a rainbow-colored aura, or a seven-colored outfit.
Anime Anime's 2026 rainbow character poll collected 102 responses between June 24 and July 1. The gender split was roughly 45 percent male and 55 percent female, and the voters skewed young: about 35 percent were 19 or under, with another 20 percent in their twenties.
An Idol and a Market Goddess Round Out the Top Three
Second place went to Yume Nijino of Aikatsu Stars! with about 11 percent, up from a tie for fourth in 2025. Yume is the franchise's protagonist, a girl who enrolls at Yotsuboshi Academy chasing the top idol unit S4 and grows as an idol through stubbornly positive effort. Readers pointed to the "niji" (rainbow) in her name, a smile that brightens everyone around her, and her rainbow-colored stage outfits. The character also has real momentum right now: Aikatsu Stars! the Movie: Anniversary Stars is in revival screenings, and a new theatrical film, Aikatsu Stars! Hoshiboshi no Progress, opens in 2027. Otome Arisugawa from the original Aikatsu! ranked as well, helped by her debut in episode 10, "Rainbow-Colored Otome," and her ties to the HAPPY RAINBOW brand.
Third place, at about 6 percent, went to Chimata Tenkyuu of Touhou Project, also up from a tie for fourth. Chimata is a goddess of marketplaces whose power strips things of their ownership, and she dresses the part: a rainbow headband and a flashy dress that looks like cloth of every color zipped together. Fans cited her debut in Touhou Kouryuudou: Unconnected Marketeers, whose Japanese title references a "rainbow dragon cave," while one voter admitted they love that such a boldly dressed goddess is surprisingly fragile and a bit of a failure as a deity.
A Three-Way Tie for Fourth, and Votes From Left Field
Fourth place ended in a three-way tie between Nijika Ijichi of Bocchi the Rock!, Mashiro Nijigaoka (Cure Prism) of Soaring Sky! Pretty Cure, and Shuzo Nijimura of Kuroko's Basketball. Nijika drew comparisons to a rainbow after the rain for her sunny personality and her knack for connecting people, a fitting read on the drummer who keeps Kessoku Band together. Nijimura earned a detailed tribute to his captaincy of Teiko Middle's basketball club, complete with a reminder that the gag spinoff Hiyoko no Basuke once turned him into a rainbow-colored chick.
The stray votes got colorful too. Altera of Fate/Grand Order was nominated for her rainbow-gleaming Photon Ray sword, and one reader picked a gag from this spring's The Klutzy Class Monitor and the Girl with the Short Skirt, in which the hapless class monitor takes a body blow in the first episode and vomits something rainbow-colored while a narrator solemnly describes "a rainbow swaying in the fresh May breeze."
Looking Ahead
For international fans, the winner's franchise is the easiest one to act on. Demon Slayer: Kimetsu no Yaiba Infinity Castle comes to Crunchyroll and digital platforms on July 28, 2026, per the anime's official English site, one day before the Japanese Blu-ray and DVD release, and all four TV seasons already stream on Crunchyroll. The Aikatsu Stars! follow-up film is dated for 2027 in Japan, with no international release plans announced yet. Anime Anime runs these themed character polls year-round, and Doma has now won the rainbow edition twice in a row, so the 2027 vote becomes a simple question: can anyone out-rainbow a demon?