Tokino Sora performs Isekai Tensei Soudouki ending with 'Brand new day'

hololive VTuber Tokino Sora will perform Brand new day, the ending theme for Isekai Tensei Soudouki. The announcement comes with the anime's second PV, where a preview of the song can be heard.

The anime premieres on January 6, 2027. The news was shared by USEN, which highlights the timing of this project for Sora: she has been active since 2017 and has just started her tenth year in the industry.

She recently filled Pia Arena MM and, on that same stage, confirmed two concerts at Yokohama Arena for December 2027. Brand new day is presented as a song meant to accompany the protagonist's story and, at the same time, reflect this new step in the singer's career.

A song for a body with three souls

Isekai Tensei Soudouki adapts the light novels by Takami Yanagawa, which have over 1.37 million copies in circulation. The premise is an attention-grabber: Bald Cornelia, a young noble played by Yuusuke Kobayashi, shares his body with the soul of a samurai commander from the Sengoku period and that of an otaku high school student.

That mix of three personalities gives him access to knowledge of warfare, business, and pop culture that he uses to climb in his world. He's not the typical protagonist who is reborn with a broken ability: here the advantage lies in what each soul knows and how they clash with each other.

Sora commented that the idea of three souls in one body struck her as very original and interesting, and that she is excited to see how each soul's personality connects with the protagonist's actions. In her words, she sang while trying to convey the character's world and what he feels.

A bright ending for an action and strategy anime

The official description defines Brand new day as bright, positive pop, with a light, high-pitched voice supported by a sparkling sound. The lyrics look to the future and fit both Bald's adventure and Sora's anniversary.

Female character in an elegant, modern outfit, posing with one hand extended.e.usen.com

The anime's second PV is the first chance to hear the song within the context of the series. The video mixes the story's tone with the new theme, serving as a final taste before the January premiere.

For Sora, this ending comes after the EP CHECK!, released on November 4, and her ninth anniversary. Yokohama Arena awaits her in December 2027, but first it's time to see how her voice closes each episode of Isekai Tensei Soudouki.