Ibuki Mioda attends Hope's Peak Academy as the Ultimate Musician in Class 77-B, renowned for her mastery of heavy metal and songwriting. Her talent emerged in the Shiba Academy light music club, where her band created the hit single "After School Poyoyon Hour." She departed the club over creative differences to forge a solo career. Physically, Ibuki possesses porcelain skin, vibrant pink eyes, and multicolored hair styled in oni-horn-like bundles. She combines a sailor uniform with punk elements, featuring mismatched thigh-high socks, multiple ear piercings, and a stitch-patterned thigh tattoo. Her affiliation with Ultimate Despair later darkened her wardrobe, adding more spikes and piercings. Her personality radiates extreme energy and eccentricity, often speaking in tangents and referring to herself in the third person. Ibuki thrives on chaotic or frightening situations for amusement and disdains mundane tasks like studying. Beneath her quirks, she shows genuine care, notably supporting Hajime Hinata during his identity crisis. She seeks a profound platonic connection—a "band member" soulmate—built on mutual trust over romance. Before the Tragedy, Ibuki experienced trauma at Hope's Peak, uncovering Natsumi Kuzuryu's corpse and Sato's murder. She joined "Operation Take Back Our Teacher" to rescue instructor Chisa Yukizome, a mission that inadvertently plunged Class 77-B into Junko Enoshima's trap. Forced to witness Chiaki Nanami's execution, Ibuki and her classmates were brainwashed into Ultimate Despair. As a Remnant of Despair, Ibuki fueled global chaos, performing concerts to mobilize despair followers. She and her classmates later entered the Neo World Program for memory alteration, resetting their minds to pre-despair states. Junko's AI corrupted the program, trapping them in the Killing School Trip on Jabberwock Island. There, Ibuki sustained her lively spirit, organizing beach barbecues and group events until her murder in Chapter 3. In the Hope Arc, after reversing their brainwashing, Ibuki and Class 77-B atoned as Remnants of Despair. They intervened in the Final Killing Game, shielding the Future Foundation from attackers and demonstrating their restored unity and combat readiness. Resolving the conflict, they embraced self-imposed exile on Jabberwock Island, living in secluded peace as part of their redemption.