[4][5] While Kubota was still in high school, his mother encouraged him to audition to enter the show business.
[3] After the audition, Kubota joined entertainment agency Stardust Promotion and became an actor.
He says his encounter with director Takashi Miike, who directed the series, was a turning point in his life.
[8] Kubota was then gradually recognized for his acting ability and appeared in several popular Japanese national television series, including NHK Asadora and Taiga drama.
[18] Kubota and actress Asami Mizukawa's agency jointly announced that the two were engaged.