I Get Stronger by Coughing Up Blood in Jujutsu Kaisen

The male lead is Satoru Gojo.

The female lead is Shi Xingyou.

An ordinary student transmigrates, not the traditionally overpowered kind.

She will grow stronger little by little.

"You would have died if I hadn't come. Now that I'm here, you're still going to die!

Then what was the point of me coming?"