Yui Kamio Lets Loose

Yui Kamio Lets Loose is a Japanese manga series written and illustrated by Hiroshi Shiibashi. It was serialized in Shueisha's manga magazine Weekly Shōnen Jump from March to November 2019, with its chapters collected in four volumes. Viz Media and Shueisha simulpublished the series in English on their Shonen Jump and Manga Plus digital services, respectively.

Plot

Set at the elite Teiyo Private Academy, Kiito Sonomiya—a charismatic member of the privileged "Life Lovers" group—has his orderly life upended when he falls for Yui Kamio, a seemingly perfect honor student. Unbeknownst to him, Yui harbors a split personality: her gentle, admired self, "White Yui", and the violent delinquent "Black Yui", who emerges when her lock-shaped hair accessory is removed. Feared as the "Dark Deity", Black Yui's ruthless fighting skills make her infamous among students.
When Yui's childhood friend Nao Ebisuno entrusts Kiito with a spare hair lock to control her transformations, he is thrust into chaos. As they struggle to suppress Black Yui's outbursts, vengeful delinquents constantly target them, forcing Kiito to navigate the turmoil of Yui's dual personas and the conflicts they unleash.

Publication

Written and illustrated by Hiroshi Shiibashi, Yui Kamio Lets Loose was serialized in Shueisha's manga magazine Weekly Shōnen Jump from March 11 to November 25, 2019. Shueisha collected its 36 chapters in four volumes, released from July 4, 2019, to February 4, 2020.
Viz Media and Shueisha simulpublished the series in English on their digital services Shonen Jump and Manga Plus, respectively. Viz Media announced the digital release of the volumes in November 2019. The volumes were released from February 25 to August 25, 2020.