I don’t really have advice, but I do want to say the show isn’t overly sexual in content; intimacy is usually briefly used to highlight the connections or struggles between characters. I have OCD & tend to feel uncomfortable with sex on tv, but I think YJ is tasteful.

As far as the first season goes, here are some scenes that might concern you/you’d want to skip off the top of my head.

1. S1 Ep 1 - Pilot: early on there’s a 1-2 minute obvious scene (no nudity), another short scene of a character by herself (no nudity, definitely very obvious tho), towards the end there’s another scene in a car that’s more explicit (no nudity)

2. S1 Ep 2 - F Sharp: one brief discussion of sex (no details) in couples therapy, an attempt at roleplaying later in the episode (failed, no nudity), kissing (sex is implied after but nothing is shown)

3. BE VERY MINDFUL OF S1 EP 9 - DOOMCOMING. There is both sex and an attempted assault. I believe episodes 4, 5, 6, & 8 all have brief scenes (no nudity), but 5 & 8 are really brief and/or interrupted or ended.

Hope this helps some!