On April 24th, it was announced that Sexy Zone member Matsushima So was diagnosed with COVID-19. 

According to Johnny's & Associates, someone involved with the stage play 'Kodomo no Issho,' which stars Matsushima, first tested positive for the virus. Everyone was tested afterward and Matsushima was confirmed positive on the 23rd. While he is asymptomatic, he will be recuperating and observing his symptoms for the time being. 

Besides Matsushima, several others involved with 'Kodomo no Issho' have tested positive as well. Consequently, the play will be cancelled until the 28th.