give me back my body!! book 1

A regular high school boy who is living a BORING and REGULAR life was suddenly transferred into the body of "Volkov blackheart" a minor character In a novel he read who was a Baron and was a drunkard. But instead of having his body to himself like a normal guy, he has to deal with the spirit of Volkov in his ear! So now they have to work around this? Will they somehow find a way to finally get their own body? You'll have to find out~