Seiki Yoshioka (吉岡 世起, Yoshioka Seiki; born January 5, 1988), previously known as Seiki (stylized in all capital letters), is a Japanese professional wrestler. Yoshioka is known for his time in Wrestle-1, where he was a three-time Wrestle-1 Cruiser Division Champion and UWA World Trios Champion and a one-time NWA International Lightweight Tag Team Champion in Pro Wrestling Zero1. In Wrestle-1, Yoshioka was a member of the #Stronghearts stable, led by Cima. In the past, Yoshioka has also toured Great Britain, as the former one-time All Star Wrestling British Mid-Heavyweight Champion.
Source: “Seiki Yoshioka”, English Wikipedia (CC BY-SA 4.0), excerpt