I Reincarnated As the Villain in a Game, but I Don’t Want to Be Executed, So I’ll Use My Game Knowledge, Stay Serious, Take It Easy, and Live a Relaxed Life

For some reason, I’ve reincarnated as a totally vile boss character in a dark fantasy-style eroge called Sword Fantasia. That boss’s name is Seras Alfeid. Seras is a human who joins forces with the final boss, the Demon King, to try to wipe out all of humanity. In the story, he mercilessly slaughters people who beg for their lives, and subjects women to such horrific ab*se that their minds break—a truly revolting, vile character. He’s also one of the toughest bosses in the game, and I remember getting a game over countless times while trying to beat him. I was so frustrated at the time from having to redo that fight over and over because of this awful character, Seras. And in the end, afte...