Japan's top YouTuber. Real name: Hikaru Kaihatsu. He has gathered many fans and support over the years, but recently, past problematic remarks and cover-up attempts have been exposed, and he is currently generating new scandals and problematic statements in real-time. He is critical of nuclear power plants. He considers barley tea a plain, unexciting, and boring drink. He develops products for 7-Eleven, such as the cup noodles "Misokin" and the barley tea "ONICHA." He has an older brother named Seikin, who is also a famous YouTuber. Unlike Hikakin, Seikin is a competent individual who has not caused any notable scandals.