Though not too far behind Demon Slayer is JUJUTSU KAISEN on the individual manga rankings, with the present-day series taking the top light novel slots, making for a rivalry between the two new Weekly Shonen Jump powerhouses.
Japanese tracking website Oricon released its estimated numbers for most-sold manga and light novels earlier today for the first half of 2021, with Demon Slayer: Kimetsu no Yaiba once again taking the top spot for both rankings (by series).
He also runs a YouTube channel about Japan stuff called TheDoctorDazza, tweets at @DoctorDazza, and posts photos of his travels on Instagram.