Artist VTuber of Hololive English, Mori Calliope, was officially announced to be performing opening theme to cour second of anime Gachiakuta. The new song will accompany the continuation of the anime story adapted from the popular manga by Kei Urana, which has started airing since July 6.
Details of Mori Calliope and Gachiakuta's Collaboration
Mori Calliope will sing a song called "LET'S JUST CRASH" as opening theme New. His involvement in the anime feels personal, given that he himself is a fan of the original manga.
In the official announcement, Mori Calliope shared her enthusiasm directly with the fans:
"Are you ready for the next arc? It's finally time for Rudo and the Cleaners to face their first big challenge! As a long-time fan of the manga, I can't wait to see one of my favorite arcs animated this season. What kind of OST can we expect from some of the hottest fights in the series so far? And with the incredible animation style of BONES FILM, we're in for a treat. Some of my favorite villains are getting ready to show their stuff, so I hope you're all as excited as I am. Let's riot! Please listen to 'LET'S JUST CRASH' as often as possible, okay?"
Mori Calliope's International Career Trail
Mori Calliope's appointment as an anime theme song performer comes as no surprise, given her strong profile in the international music scene. Since making her major debut with Universal Music in 2022, she has continued to build her reputation as a globally recognized "Made in Japan artist".

Here are some notable achievements in his career:
- His latest album, "PHANTOMIME", managed to rank first on the iTunes Alternative Album Chart in 10 countries/regions around the world.
- His work has also successfully penetrated various Billboard charts in the United States, including Billboard Artist 100, World Album, Top Album Sales, and Heatseekers Albums.
- In February 2025, he held his first sold-out solo concert overseas at the Hollywood Palladium in Los Angeles.
For the latest information about her activities and works, you can follow Mori Calliope through her official channel at YouTube, X/Twitter, as well as visiting Official International Online Shop His.
About Gachiakuta Anime
The series follows the journey of Rudo, a teenager from the slums of the floating city. In an unequal social system, the elite live in luxury while the lower classes just survive on scraps. One day, Rudo is accused of a murder he didn't commit and sentenced to an extreme punishment: being thrown into a ravine where all the city's garbage is piled up.
At the bottom of it, he discovered a real threat-a monster of waste known as the trash beasts. With the help of a group called the Cleaners, Rudo begins to hone new powers in order to uncover the truth and take revenge on those who have framed him.
Gachiakuta is an anime adaptation of a dark fantasy manga written and illustrated by Kei Urana. The manga was serialized in Kodansha's Weekly Shonen Magazine, with the animation production handled by BONES FILM studio, which is known for its high quality animation.
Source: official press release