I would try reading it. A lot of the comments at the end of the day are opinions. The manga is pretty toned down compare to the novel. Most the scary comments are from novel readers. The manga mainly focuses on the political/ scheming side of the journey. There is a hint of enemies to lovers between some the couples. It's a early spoiler but Sigurd and Juliette are not biological siblings. The Mc knows this and uses this to get Sigurd to dismiss the prince, and protect the MC's only remaining bloodline daughter. The slavery is only mentioned briefly in the novel from what I was told. There are some shady businesses running in the empire and it explain why certain people are at a certain location, during a certain event. It is to show how dark the world really is and to shock some the characters/ readers. There are no special powers or game cheats, like other transmigrated game genres. Andrim/ the MC uses only his smarts/ past memoires of playing the game. We aren't even sure he remembers the rest of his past life, only the events of the game. Only the dragons have special powers and a lot of them are captured to bless a kingdom by force, like the one in their kingdom. They go into more in the sequels, which i'm unsure if they will continue the manga into them.
Hope this helps. I tried not to spoiled too much of it. Let me know if I got anything wrong novel readers.
Y'all can you give me a quick summary of the story? Like, is this a harem, does he seduce everyone and go about hoeing? Or does he end up with 1 person?
I see some comments about incest that may or may not be pseudo, as well as sexual slavery... Like, is this true, and how bad are the bad parts?
And does he remain evil? Does he get a happy end?
Like, I wanna read this, because an evil chara from an otome knowing he is inside a game and going on a power trip, and that being BL? Hell yeah, sign me right up. But also, I'm a sensitive lil bitch