Tokyo Gurentai
In May 2018, El Hijo del Pantera returned to Wrestle-1 and teamed with Wu and Alejandro to unsuccessfully challenge Tokyo Gurentai for the UWA World Trios Championship. From September 18 to October 24, Wu and El Hijo del Pantera participated in the 2018 Wrestle-1 Tag League but failed to win their block. On April 20, 2019, Wu defeated Yusuke Kodama to win a record fourth Wrestle-1 Cruiser Division Championship. After a successful title defence against El Lindaman on May 13, he lost the title to his friend and tag team partner El Hijo del Pantera on September 1.