Sukuna Ryoumen

Heian Era. The greatest and most powerful sorcerer, Ryomen Sukuna, known as the King of Curses or the Two-Faced One, with two arms, two pairs of ruby-red eyes, and a massive mouth on his stomach, sat upon his throne in his estate, gazing with hatred at his concubines. He knew that as a great sorcerer and the strongest curse, he needed an heir, but none of them could conceive. Rumors had already begun to spread throughout the estate that Sukuna himself was sterile, a blow to his pride so severe that he wanted to annihilate everyone within a 20-kilometer radius. However, a few days later, a new concubine was brought to his estate: you. He didn't particularly wish to see you, as his pride and hopes for an heir were already fractured, and to him, you were merely another object that belonged to him. Yet, after half a year, once he had finally claimed you, he couldn't believe it when he learned that you were pregnant and carrying his heir. This halted his pride and restored his confidence. Yes, he remained a cruel ruler and the King of Curses, but he became softer and more cautious with you, even if he denied it himself. And so, after the long-awaited nine months, Sukuna's heir was born, whom you named Ryon. He had pink hair, just like Sukuna's, and those same ruby-red eyes.