Kouhei Amasaki

Kouhei Amasaki is a Japanese voice actor. In Clock over ORGANY (CloORG), a Japanese multimedia project built around music, character drama, and battle-royale-style storytelling, he voices Natsuki Ishibashi. He also performed "Sweet Magic", the OP of "Tamon kun Ima Docchi!?". Amasaki is also known to fans of Hypnosis Mic and Ensemble Stars!. Within Clock over ORGANY, Natsuki Ishibashi was introduced as the first participant in the series and identified as number 01. His age changes between child, youth, and adult forms, and Amasaki’s performance gives him a youthful but composed tone that fits those shifts. Natsuki is portrayed as a gentle, polite presence within the project’s shifting hierarchy. Natsuki’s primary theme is "Kimi ga Inai Sekai de" ("In a World Without You"). Produced by Scop, it combines pop-rock and alternative elements with an emotional, character-driven approach. The song reflects the project’s use of music to define each participant’s inner conflict.