Pre-debut On August 21, 2020, Fantagio Music released an image teaser with a logo and a date confirming that Moonbin and Sanha would form a sub-unit and release an EP in the next month. Before debut, both Moonbin and Sanha co-hosted the music show
Show Champion since March 2020 along with
Verivery's Kangmin. In a press Q&A, Moonbin and Sanha stated that their chemistry while co-hosting inspired them to form a sub-unit.
2020–2023: Debut with In-Out, Refuge, and disbandment On September 14, 2020, Moonbin & Sanha officially debuted with the EP
In-Out and its title track, "Bad Idea". A week later, on September 22, they gained their first music show trophy with the single on
SBS MTV The Show. A week after its release,
In-Out debuted at number 9 on the weekly overseas album chart of Oricon and at number 2 on the weekly album chart of Gaon. On December 3, 2022, Fantagio announced that Moonbin & Sanha would make a comeback on January 4, 2023, and scheduled to return with their third EP
Incense. Moonbin died on April 19, 2023, thus resulting in the sub-unit's disbandment. On April 27, Fantagio confirmed the unit's Weverse community would be shut down on April 30, nearly 2 weeks after its initial creation. ==Discography==