It's been announced that ZOC's Aizome Karen has tested positive for COVID-19. 

According to ZOC's Twitter account, Aizome is currently awaiting instruction from the health center. The other members have been tested as well and are awaiting their results. 

Consequently, ZOC will be cancelling their 'ZOC Jikken-shitsu vol.1' on January 18 at LOFT Shibuya as well as their 'ZOC-chan no Motto Iitoko♡ vol.1' on January 27 at Tokyo Culture Culture.