Toshirou

Toshirou is a committed performer whose dramatic stage presence matches HAYASii's elaborate visual presentation. The manga gives relatively little attention to his private personality because the band generally appears while actively performing.

He treats exorcism with professional intensity. Being asked to play for a possessed teenager does not cause hesitation; he and the band launch directly into the performance required by Seiko.

His role as frontman makes him the focal point of HAYASii's stage presence, but the exorcism itself remains a collective effort rather than a showcase for any single musician.

Toshirou has no confirmed independent supernatural ability. His principal established skill is singing as HAYASii's vocalist.

The band's music can support an exorcism by creating the conditions needed to drive a possessing entity from its host. Toshirou's vocals form the leading element of that performance.

HAYASii operates in cooperation with experienced spiritual practitioners rather than replacing them. Toshirou provides the musical component while Seiko and others deal directly with the supernatural mechanics of the possession.

Toshirou appears when HAYASii is summoned to the Ayase residence to help exorcise the Evil Eye from Jiji. Their arrival transforms the planned ritual into a full visual-kei performance.

The band plays at high intensity while the possession reacts, demonstrating that music can be integrated into the eclectic supernatural techniques used by Seiko.

Toshirou's appearance also broadens the setting's occult community. Seiko's network includes not only mediums and shrine priests but professional musicians accustomed to participating in exorcisms.

Hideji is Toshirou's guitarist and fellow member of HAYASii.

Patterson performs as the band's bassist.

Yoshikishi supplies the drums during HAYASii's performances.

Seiko Ayase employs the band as part of her exorcism work.

Jin Enjouji is the possessed teenager whose case brings HAYASii directly into the main story.