I don't know much about it... and what i do know is pretty basic story you will find in other comparable stuff

But maybe someone remembers it

It has been english translated and is largely or completely grey scale

The story is about a woman (i think its a mother) and a younger boy that live together (assuming she's a mother this must be the son). There relationship is slowly growing closer.
At some point the woman goes somewhere (i think it was a reunion or something) and comes home drunk with a guy. Sex ensues and she gets broken

I think the woman had pretty short hair... but not 100% sure about this

I remember reading it not that long ago (maybe 1-3 years)... but that says very little about its release date

Any help would be appreciated

Found it. It was "overdose - Birthday"