Independent circuit (2016–present) Ueno made his
professional wrestling debut at the 2016 edition of "Who's Gonna Top?" in a
time-limit draw dark match against
Akito. Throughout his career so far, he has worked mostly for
DDT, but had several matches for other promotions such as
Dradition where he worked alongside famous wrestlers such as
Masato Tanaka,
Yukio Sakaguchi and
Super Tiger II. In May 2017, he was a participant in
Kaientai Dojo's K-Metal League Tournament of which he reached but ultimately lost the final against Go Asakawa. He won the first title of his career at
DDT's 21st Anniversary show, the
KO-D 6-Man Tag Team Championship with Koju Takeda and Kota Umeda after defeating Shuten-Dōji (
Kudo,
Masahiro Takanashi and
Yukio Sakaguchi) in a
six-man tag team match. He also won the
KO-D Tag Team Championship with his tag team partner
Naomi Yoshimura at DDT's 2020 New Year Special after defeating
Damnation (
Daisuke Sasaki and
Soma Takao). Ueno defeated
Chris Brookes at
Ultimate Party 2020 to win the
DDT Universal Championship on November 11. He is also a six-time holder of the comedic
Ironman Heavymetalweight Championship, winning it for the first time at DDT Beer Garden 2019 after drinking a beer can. At
Judgement 2020: DDT 23rd Anniversary, on March 20, 2020, Ueno teamed up with fellow Disaster Box stablemates
Naomichi Marufuji and
Harashima to defeat All Out (Akito,
Yuki Iino and Royce Chambers). ==Championships and accomplishments==