The reader is Ivy's roommate, and isn't a Villain, or a hero, yet. When Ivy and Harley break out of Arkham, and Harley finally realizes Joker doesn't love her, Y/n spitballs the idea of Her and Ivy becoming Heroes, not only to shove it in Joker's Face, but it'll help Harley Recover with less risk of relapse, and Ivy would have better chances of helping the floral environment.

Other Villains that join them in redemption are Clayface, Cheetah(who is friends with Y/n), and Galatea(also friends with Y/n, though she sees herself more as a rival to Y/n because of how easily he can beat her).

Y/n uses ring magic and Requip magic from Fairytail. He also is talented in making magic tools. Other traits of Fairytail magic are used like Aethernano and Lacrima.

Harem: Harley, Ivy, Cheetah(Wonderwoman Bloodline), Power girl(Galatea, Super Girl clone, Justice league Unlimited).