Everyone Thinks the Protagonist Will Turn Evil

If you knew the protagonist was destined to become evil, what would you do about his scumbag father, who beat him from childhood and stole his school money to gamble; his scumbag mother, who never fed or clothed him properly and made him do all the housework and serve the whole family; his scumbag younger brother, who fought him for their parents' affection and bullied him behind their backs as well as to his face; his awful relatives, who constantly took advantage of his family and beat and berated him; his classmates, who teamed up to bully him at school; his teacher, who looked down on him because he was poor; his wealthy biological father, who abandoned him years ago; the mistress who traded her own illegitimate son for him, handed him over to the scumbag parents, and eventually killed his mother so she could take her place; the cannon-fodder scum top who stole his youth, body, and money before cheating on him; and the cannon-fodder bottom, who had the scum top's looks, a white-lotus exterior, and a petty little brat on the inside...? Short story, top-focused, pairing undecided. Every side character in this story has an IQ of 40 or lower. No flaming me about the characters' or author's IQ!!!! Announcement: This story will go premium on December 23, 2014, tomorrow. Three chapters will be updated at once. Thank you for your support. Also, I'm very sorry, but there is a minimum word count requirement for going premium, so there will be no update today. I'll make it up tomorrow. Theme: