Kaku launched Ayashimon in Weekly Shonen Jump on November 15.
He added however that while he was recovering, he was unable to continue working, and so there will be no chapter of his Ayashimon manga the 12th issue of Weekly Shonen Jump on February 21.
Viz Media has released the manga digitally through its Shonen Jump service, and Shueisha also released the manga through its MANGA Plus service.
Manga creator Yūji Kaku revealed on Twitter on Monday that he was recently diagnosed with the new coronavirus disease (COVID-19).