Acting
Tetta Seki is a Japanese actor and a member of the dance vocal group, 'ONE N' ONLY'. He was born in Kanagawa, Japan.
One day, Genjiro invades an art school and destroys the equipment, and at the invitation of Kano, a girl who devotes himself to the dance he meets there, he decides to practice hip-hop duet dance. For the first time in his life, he graduated from the yankee and started working towards a group dance announcement with his rivals with his fists.
ONE N' ONLY's high-energy Jatin-pop spectacular on nationwide tour with a sold-out, festival-like finale in Tokyo, showcasing intense choreography and a celebratory atmosphere.
Yukino, a part-time worker at a convenience store, and the strange experience she has when she encounters a mysterious customer in the middle of the night.
ONE N' ONLY LIVE TOUR 2025 「LUMINA」, a sold-out nationwide tour across six cities, celebrating the group's major debut. The title, meaning "light," reflected their bond with fans. The finale at Pia Arena MM featured dramatic aerial entrances and hits from their album AMAZONIA, solidifying their Jatin Pop evolution.