[citation needed] In 2011 he formed a project group with label mate Heechul called M&D (meaning "Midnight and Dawn" or "Miari and Dangae-dong", after the members' hometowns).

[1] Heechul wrote the lyrics and directed the music video for the song, while Jungmo produced and performed the instrumental.

He served non-active duty as a public service worker for 23 months after completing four weeks of basic training.

[10][11] On July 23, 2019, Jungmo released his first single "Peach (복숭아) (featuring Henry)" since departure from SM Entertainment.

It is a medium-tempo retro synthpop genre song with lyrics that contain the heartbreaking feeling of a man who comforts and cheers with his heart hidden during counseling, saying that there are people whom his unrequited partner has in mind.

[13] On June 14, 2021, Pink Fantasy released a teaser for their upcoming song "독(Poison)" featuring Jung Mo as the guitarist.