Izuku is quirkless, but not powerless. He awakens the power of a Ruler. This Ruler power is a power that awakens in 12 people who are the same age. The 12 rulers are ¹serpents, reptiles, and dragons, ²horses, pegasus, and unicorns, ³dogs, wolves, and cerberus, ⁴cats, big cats, and black panthers, ⁵bunnies, hares, and jack rabbits, ⁶hawks, eagles, and griffins, ⁷dolphins, whales, and pleslosaur, ⁸bears, pandas, and otso bear, ⁹turtles, tortoises, and dragon turtles, ¹⁰bulls, deers, and minotaurs, ¹¹foxes, yo-kai, and Kitsunes, and ¹²butterflies, spiders, and fairies.
You don't know how or why, but you've been isekai'd into the world of Jujutsu Kaisen. Although your first instinct is to stay far away from the plot, you've been blessed with an abnormal amount of cursed energy, and for better or worse, you find yourself sucked into the storyline. You decide that you may as well use your newfound powers for the greater good, and if you're lucky, you might succeed in rewriting some of the characters' fates. But it turns out that your presence in this world is even bigger deal than you first thought, and soon, everyone wants to make you theirs.