Kazuya Yuasa (湯浅 和也, Yuasa Kazuya) is a Japanese professional wrestler, better known for his ring names Gaina (stylized in all capital letters) and Shisao (シーサー王, Shīsāō). He has worked in Michinoku Pro Wrestling, Osaka Pro Wrestling and Okinawa Pro Wrestling, having titles in all the three promotions.
Source: “Kazuya Yuasa”, English Wikipedia (CC BY-SA 4.0), excerpt