Jujutsu Kaisen Season 1 Episode 14

Itadori Yuji is a boy with tremendous physical strength, though he lives a completely ordinary high school life. One day, to save a friend who has been attacked by Curses, he eats the finger of the Double-Faced Specter, taking the Curse into his own soul. From then on, he shares one body with the Double-Faced Specter.