I'm not sure where this series is going? it could end up in angst route or a darker storyline. That's the vibe I'm getting each time a new chapter comes out.
Ah. No wonder I've been having a dejavu. I actually had read this (and its continuation) in Chinese before.
SPOILER: After Tomo grew up, she and Kyou has started an affair. It's a 8-page short one about another x-mas. Tomo's mom didn't get a break, though.