Here is the full list of all 13 Kilmonger achievements.
Achieved by reading the novel thoroughly.
Happy end indian style.
Achieved by getting the plot twist like in some Latin American show.
Achived by looking through every CG art.
Achieved by sharing the fate along with inner contents with the beloved one.
Now you have access to bonus chapter, that will unravel some mysteries and put some dark on the obvious things.
Achieved by dangerous bodily harm by the magic sword.
Explore the insides of the demon by yourself.
Now you have access to sandbox mode, where you can make your own homunculi.
Achived by trying to gather an army of demons from the hell.
Achieved by getting stress position on some uncomfy furniture.
Achieved by exploring the non-animal-powered transport.
Seduce the young maid.