Taisei Ota (翁田 大勢, Ota Taisei; born June 29, 1999) also known as Taisei (大勢) is a Japanese professional baseball pitcher for the Yomiuri Giants of Nippon Professional Baseball (NPB). He is the first Japanese player to use first name for primary display in the Yomiuri Giants.
Source: “Taisei Ota”, English Wikipedia (CC BY-SA 4.0), excerpt