I'll save you a click: Japanese convenience stores are "dark" places because a female clerk in the middle of restocking didn't want to play free Japanese conversation partner for the writer.
for vampirente
Btw, for long time followers and all the new folks, if you like these animations I've been making, don't forget to drop a tip over at ko-fi.com/knaveofclubs
I can keep more focus on them and keep refining what I'm doing.