Tsubasa Reservoir Chronicle -

“The price for my wish was my existence. But the price for his freedom was this eye. You made it a vessel for your curse. But you forgot—a curse is just a wish that was never fulfilled. And I wish… for you to stop.”

Syaoran stared at the sleeping form of Sakura, which floated nearby, still incomplete, still waiting. If he refused, the real Syaoran would remain trapped forever, and the timeline would collapse. If he agreed, he would vanish. Sakura would wake to a stranger wearing his face. Fai and Kurogane would forget him. Mokona would chirp for a master who never was. Tsubasa Reservoir Chronicle

Sakura stirred beside him. Her eyes opened—clear, violet, full of recognition. “The price for my wish was my existence

He reached out and pressed his palm to the crystal coffin. But you forgot—a curse is just a wish

“Syaoran?” she whispered.