>The starting premise is that a boy feels lonely since his mother died when he was a baby and has never felt maternal affection (plus, his father is very distant).
>To get some "maternal affection", he lies about his age in a dating app and ends up hooking up with a mature woman with whom he confess his situation.
>He gets caught and is forced to completely cut contact with her and so a few years pass without knowing anything from her.
>His dad starts dating a woman, unbeknownst to him, his dad started dating the very same woman he hooked up with back then. They recognize each other but obviously can't tell the father what happened.
>Soon after they meet up again and with the father still oblivious to the situation, he goes on a business trip, leaving them alone in the apartment(?)
That was the last chapter I read of it

The manga was 『NOT』 a hentai.
The mangaka is a woman, known to have femdom twinges in her previous published stories.
The manga is relatively new (less than 5 years old)

Pic unrelated