I recently found "Out of Touch" here on Itch.io.
Is has a manga graphics style and a complex story about gods which are a threat to humankind. I would say it's a coming of age story that covers serious topics like mental illnesses and a lot of self-doubt. Every character has their own struggle to deal with and their friendship helps them to overcome their struggles.
It's a strange combination of a cute graphics style on the one hand and a complex story with serious topics on the other hand, but somehow this combination allured me.
I think, you could get a lot from it, also without the sex scenes, but on the other hand there is a story-relevant explanation why the characters "bond" with each other. So, if you totally skip those scenes, you might lose a bit of story-relevant information (at least of what I have seen so far). That's not true for all sex scenes, though.
Another point I want to mention is that it is very linear. There are almost no decisions for you to make besides to whom a character talks to or where they are going to in some scenes. I usually end up choosing all options, because I don't want to miss a bit of story.
Like Enternum, it's not finished yet (I usually prefer playing finished games), but has a lot of content available already.