بیوگرافی: Koyanagi Shin is an actor and writer from Tokyo, and is managed by to Stardust. His pen name is Fumitomoshin (ふみともしん). His father is a member of the music duo Bubblegum Brothers (バブルガム・ブラザーズ), and goes by the stage name Bro.TOM. His younger brother, Koyanagi Yu (小柳友), is also an actor under the same company. (Source: Wikipedia)