Hope I'm wrong, but this screams like a game that is going to drag out as long as possible before any actual "content" shows up. Anytime a dev says something about it being a slow burn game it seems to take 2 years for anything to happen to keep the patreons stringed along.
I doubt Ocean will prioritize "NTR" content and leave the romance/good guy route to hang and dry. Sexual content will come but there is a good premise and story here unlike typical Harem games, retarded NTR games (Love Interest are insta sluts to other men) and just straight up sex simulators (like Paralogue, Honey Select, etc.,). So if you don't like story before some fuckings then this game will probably not interest you.
TL;DR. Story buildup and certain actions (e.g. Romantic actions) then Sex.
Also dev has another game with sex and story, so this definitely won't turn into "A Woman and a Mother" which lacks of sex contents despite the year it started.
PS. Not kinkshaming NTR as a fetish by calling it retarded but just pointing the stupid plot in most of NTR-focused or optional games (typical BBC stories; no buildup to the relationships; NTR route Love interests are insta sluts to other dicks while the Vanilla is slow grind; cheating on small dick MC; and/or other typical stupid NTR and cheating plots).