The best thing about this manga version I think is how developed and beautiful the friendship between Hitomi and Satou here is. They're both unstable and troubled, but it seems the one constant here is that they both really deeply care about each other and they're really good friends. I always love seeing them together. They really should've got together back in high school, they'd be a perfect match it'd seem and maybe both of them would be in a different spot right now.
It was really awesome to see Satou return with playing cards. Felt like he really cared about Hitomi and didn't want to ruin her life and still being in love with her.
I just wish he would've ended up with Hitomi... Misaki here seems even more toxic than in the anime.