The psychopathic overlord(title sucks I know)

A sociopathic man that the world feared because of his mass murder spree throughout the world. Dies and was imported in a game world that he used to play before his murder spree throughout the world.
In the game, he was known as the final boss although there was one the game already created. The reason why was because in the game he was an archangel and under him where summons that he himself created. Though there were only one thousand troops each held extreme power and strength. Thus defeating one was already a taxing tax and even if you managed to beat them there were seven summons that couldn't even be compared to the others due to there strength. Thus many called the man the final boss or aka "The fallen angel"

Why you may ask me was all this information important well are the protagonist has reincarnated into the body of the character in the game he used to play.

How will are Mc be able to adapt to the sudden changes in his new life as the king of his many summonses who seem to have adapted emotions and will he ever get rid of his murdering ways or will he stay the same man he was for all these years.

Note: I do not own any pictures and also this book is inspired by overlord so do check it out.
BTW got really lazy with the names be warned