Sho-ComiX launched as a supplementary magazine to Shogakukan's Sho-Comi magazine in 2019, and releases every 15th of the odd-numbered months.
The magazine launched Miko Mitsuki's Shōnen Bride -Dansō Reijō to Kuro Shosei- (Boy Bride -The Cross-Dressing Lady and Black Student-) manga as a one-shot in January 2020, and started its full serialization in May 2020, until the series moved to Sho-Comi in March 2023.
The magazine also serializes Yukimo Hoshimori's Otona no Hatsukoi manga, among others.
Source: Sho-ComiX August 15 issue