I remember it was set in the Omegaverse. The uke and seme met during high school or uni and started a relationship. There was a social and economic divide between them.
The seme somehow fucks up and they separate, but the uke is pregnant and raises their child in secret. (Can’t remember if the seme was the one who broke things off, it might have been)
I remember the child meeting the seme on the street before the couple actually met again. The seme also does some groveling, and at one point pulls strings so that their child will be accepted into a much fancier kindergarten run by his family’s company.
I think the uke was employed at a cafe (or owned it?) and his sister was an actress or idol.
Sorry if it’s disjointed, it’s all a blur when I try to remember it lol