I was Reincarnated as a Grossly Fat Villainous Noble in an Eroge Full of Villains. I'll Lose Weight, Avoid Ruin, Prevent the Villains' Crimes Before They Happen, and Live a Slow Life.

Karl de Hamilton is a disgusting villain aristocrat who appears in Extreme Eroge. Because of his terrible appearance, most people hate him, and he lives a lazy and withdrawn life. Okay, since I've been reincarnated, let's train our bodies and lose weight for the time being. Not only me, but also other terrible-looking friends (villainous young lady) are invited to go on a diet together!