Yorozu was incarnated into the body of Tsumiki Fushiguro for the Culling Games. Once she was incarnated, she had one goal, kill/defeat Sukuna to (supposedly) teach him about love.

When she found him, already in the Culling Games, she asked Sukuna If he would marry her if she defeated him, he accepted which drove Yorozu wild with enthusiasm.

They fought and in the middle of the fight, she threw a temper tantrum, because Sukuna was using the techniques of Megumi and she was made that he thought he could win without his Shrine.

Needless to say, he defeated her quite easily with that technique, making a huge cut on her torso. However, she was happy.

Before she could die, she saw someone, a woman that came to save her, what the hell?!

"What's your problem?!"

Yorozu yelled once Sukuna inevitably left, being mad that she was saved.