Douki

Tatsuya Hayama (葉山達也, Hayama Tatsuya; born December 24, 1991), better known by his ring name Douki (stylised in all caps as DOUKI), is a Japanese luchador enmascarado (or masked professional wrestler). He is signed to New Japan Pro-Wrestling (NJPW), where he is a member of the House of Torture, and a former two-time IWGP Junior Heavyweight Champion Douki was a member of Suzuki-gun from 2019 to 2022, and a member of Just 5 Guys from 2023 to 2025.