In the same year of 2019, Code Kunst appeared in another Hip-hop reality survival program "High School Rapper 3".
Code Kunst was in the same team with The Quiett. Together they produced "Go High" (feat. Changmo, Woo Won-jae), sung by female rapper Lee Young-ji, who became the final winner of the show.
Loopy and Kid Milli from his team won second and third place in "Show Me the Money 777".
In 2019, Code Kunst, along with Jay Park, Simon Dominic, Woo Won-jae, and Gray, appeared as judges on the audition program Signhere started by Korean Hip-hop label AOMG and MBN.
In September 2018, Code Kunst officially appeared in the Korean Hip-Hop survival show "Show Me the Money 777" as one of the judges.
He then was nominated by Korean Hip-Hop Awards for Best Producer in 2019.
He is also a member of Legit Goons crew, which consists of composers, rappers, engineers, and filmmakers.
In 2018, Code Kunst collaborated with various Korean hip-hop artists including Nafla, Loopy, Kid Milli etc.
He left HIGHGRND and joined Jay Park's label AOMG in June 2018.
In September, 2015, Code Kunst joined the label HIGHGRND under YG Entertainment due to the impact of Tablo, and released his third album Muggle's Mansion in February, 2017.