Huh, I assumed it wasn't a hit, but it wasn't even that bad, I'm sure we all saw a lot of more creepy stuff out there having not only extras but also 2nd volumes lol
Ppl are weird, not that I'm sad, I just never thought about the fact that extras probably mean there's a print and a whole volume...And that only makes me question what is actually popular in Japan considering the content I "see" getting published lol