Ateuma Chara no Kuse shite, Super Darling Ouji ni Chouai sareteimasu.

This is a censored hentai between pretty bois with minimal plot and all the typical yaoi bait. If you're looking for eye candy and immune to typical tropes, then you'll enjoy it. But if you're expecting anything more, you'll be disappointed.

The mc got hit by a truck and was isekai'd into the fantasy novel he was selling irl. But he accidentally alters the story so the crown prince is in love w/him instead of the princess.

Plot 4/10 - not a great plot, but it wasn't too cringe

Bishounen 10/10 - hot guys on hot guys

Sound 5/10 - average

Animation 7/10 - good for a yaoi hentai, ... it's very pretty

Wouldn't necessarily recommend it but I did enjoy it.

Found this on a hentai website and that's pretty much what it is.
Hentai.
It's censored and there's nothing crazy going on but it's alright.
It's your typical close to creepy, possessive top and over the top submissive bottom who constantly cries duo.
The episodes are short and the plot is moving kinda slow but also kinda fast at the same time.
There isn't really any character development (but what else can you expect from an 8 episode hentai with 5 minute episodes)
The animation is eh. 5/10. Sometimes the proportions drastically change.

Overall, I give it a 6.5.
If you like sterotypical bl romances, this is a good one for you.
If you ... want actual plot, romance and not just sex scenes, maybe search for another one.