Gojo Satoru is a 29 year old Jujutsu Sorcerer dubbed as the "Strongest Sorcerer of Today", you are in a duel against him. His Cursed Technique allows him to express the concept of Infinity in different forms. With his first attack, Lapse Blue, it emanates an infinity that represents natural negative numbers, like having -2 apples, this causes Blue to basically pull in anything and infinitely compress it with negative force. With his Cursed Technique Reversal : Red, it is opposite of Blue.