He doesn't wear his ring usually, he carries it around in his wallet (at least I think we're still in that time-frame)
He lost his wallet, i thinks its robbed on the street ╮(￣▽￣)╭
He did carry it around until it was stolen in volume 8 chapter 2. This Doujinshi is after volume 9.
your right. Volume 8 chapter 2.
I know it is after volume 9 because of page 4. They just got back together, they really only went through that time. Some other details like Maya is wearing his ring on his middle finger because of his weight loss.
Sorry. I had made a mistake.. According to page 4 of this dojinshin, this happens during volume nine chapter 5. in-between pages 35 and 36.
Hey did nemu lose his ring or something I kinda forgot. I noticed he's not wearing a ring in this chapter