Yume's friend who enrolls at Four Star Academy with her to become a top idol.
One of the two girls who move in with Basara. She secretly holds the identity of a future Demon Lord, which drives much of the supernatural conflict and household dynamics.
Voice actor for Yolei Inoue, tech-savvy DigiDestined and warrior of love.
Chosen child of love, Yolei, tech expert and partner to Hawkmon.
Cheerful trumpeter and Kumiko's close friend. Loyal, energetic, and supportive of the band.
Band member whose casual and joking demeanor during practice initially clashes with the more serious expectations of new juniors, reflecting the band's evolving culture.
One of Basara's new step-sisters, secretly the new Demon Lord. She enters a reverse contract with Basara, making him her master, and faces life-threatening pursuits from demons and heroes.
Cheerful clarinet player and Kumiko's best friend, brings warmth to the group.
Cheerful euphonist and Kumiko's best friend, provides emotional support and comic relief within the band.
A key figure originating from Riding Bean, serving as Bean Bandit's primary ally and romantic partner. Her background complements the merged narrative set in Chicago.
Ayaka Asai has 62 screen credits in a career dating back to 2012. Their work spans 3 cinematic universes — most prominently Sound! Euphonium Collection with 7 titles. Signature works include Welcome to Demon School! Iruma-kun, Sound! Euphonium, The 100 Girlfriends Who Really, Really, Really, Really, REALLY Love You. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
Universe traveler — spans 3 universes
Related entry on Wikidata (Q17685820), public domain (CC0).
