Shin Koyanagi (小柳 心, Koyanagi Shin, March 14, 1987) is a Japanese actor, writer, and screenwriter from Tokyo. He has blood type A and is 181 cm tall. He belongs to Stardust Promotion. His father is the singer and talent Bro.TOM of the Bubblegum Brothers, and his younger brother is actor Shin Koyanag...