Sukai Kinjo
JO1’s deep-voiced Osaka performer, songwriter and actor. Sukai gives the group low-register contrast, dry humor and a screen presence that can turn serious without becoming stiff.
Profile
| Full name | Sukai Kinjo (金城 碧海) |
|---|---|
| Born | May 6, 2000 |
| Birthplace | Osaka Prefecture, Japan |
| Height | 180 cm |
| Blood type | A |
| Group | JO1 |
| Creative lanes | vocals · songwriting · acting · performance |
| Agency | LAPONE Entertainment |
| Status | Active · 2020–present |
Produce 101 Japan and JO1
Sukai earned his place in JO1 through Produce 101 Japan, where his growth became part of the story rather than something hidden behind a polished final product. In the group, his height, vocal color and understated delivery quickly made him distinguishable inside an eleven-member formation.
JO1 debuted in March 2020 with PROTOSTAR and “Infinity.” The group’s scale means every member needs a distinct visual and musical function; Sukai has built his through low vocal color, measured charisma and an acting catalog that keeps expanding.
Music, performance and credited work
Sukai’s official writing record includes JO1’s “YOLO-konde,” “NEWSmile,” “Bon Voyage” and “Be brave!,” plus the LAPOSTA theme “LOVE ALL STAR” and “Breaking Champions.” His 2025 solo release “If I Fall in Love” gave that lower register more room to lead rather than decorate.
His value in JO1 arrangements is contrast. When a song stacks brighter voices, Sukai can reset the texture with one grounded line. He does not need to manufacture heaviness; the tone already supplies it.
Acting, broadcasting and side quests
Sukai led the Short Program episode “Wakaba Mark,” then appeared as Masato in WOWOW’s Drop and Daigo Seyama in Densetsu no Head Sho. His films include OUT as Ryo Sawamura and Run for Money THE MOVIE as Yugo Kitamura.
His television and event credits span music, variety, fashion and survival-game formats, including Netflix’s Run for the Money: Battle Royal. His LAPOSTA 2025 solo show carried the title Love in the Sky – A Comfortable Flight.
Fandom notes and useful context
- Voice file: Sukai’s low register gives JO1 arrangements an audible floor.
- Writer file: his official credits extend across group, LAPOSTA and collaboration projects.
- Osaka roots: his official profile lists Osaka Prefecture as his birthplace.
- Screen lane: multiple drama and film roles make acting a sustained branch of his career.
RaeRae take
Sukai can look like the serious one right until a joke slips sideways out of his mouth. Musically, he works the same way: calm surface, then one low line changes the entire color of the chorus.
YouTube tracking history
Official solo releases credited to SKY through JO1’s PLANJ project.