The official website for the sci-fi anime feature film AS ONE released a special four-minute trailer featuring the full version of theme song "Meguriboshi." Ruki Shiroiwa , a member of the Japanese boy band JO1 who voiced the male protagonist of the film, Yoh, sang the theme song under the artist name RUKI . He also wrote, composed and self-produced the song. AS ONE Movie Theme Song Trailer RELATED: AS ONE Anime Movie Releases New Trailer Featuring RUKI Theme Song AS ONE released in Japan on August 22, 2025. Kobun Shizuno ( the Case Closed/Detective Conan film series) served as director, alongside character designer Yoshiyuki Sadamoto ( Neon Genesis Evangelion , The Girl Who Leapt Through Time ) and mechanical designer Ippei Gyoubu ( Mobile Suit GUNDAM Iron Blooded Orphans , and Mobile Suit Gundam the Witch from Mercury ). In addition to Ruki Shiroiwa as Yoh, the main voice cast members also included Haruka Shiraishi as the main heroine Rako, Shunsuke Takeuchi as Vigo, Yoko Hikasa as Kizana and Ryuhei Maruyama as Rako's father. The anime film is based on Square Enix's arcade game Starwing Paradox , which originally released in Japan in November 2018. It will serve as a prequel to the game's story, taking place 20 years before the game. The synopsis reads (translated): Present-day Earth. Yoh, a high school student who aspires to become a musician, is troubled by his parents' opposition and his bandmates' relationships, and is undecided about his future. One day, as Yoh walks through a Shibuya intersection, a voice echoes in his brain, “Help!" and he is enveloped in a white light. Meanwhile, Meguriboshi floats in space. Just as a ceremony was about to be held to mediate a truce between the Va Led Sei Kingdom and the Ko Country A Slegga, which had been at war for a long time over the energy source "Hoshi no Chi" ("star blood"), a huge piece of orbital debris fall,s and Vigo of the Purugard team was frantically dealing with the situation. Rako, a robot mechanic, takes off in a plane that is still in the process of being serviced to save Vigo, but she finds herself in a critical situation. After a brief flash of light, Rako's heavily damaged plane is able to move the debris to the surface of the sea, but she loses consciousness. Rako, in a coma, meets Yoh in her consciousness. What is the meaning of the encounter between Yoh and Rako? And what is the fate that awaits Yoh and Rako, two in one? Sources: "AS ONE" film official website
