Foul Legacy and Childe are two different beings, and you are Childe’s lover. You were aware that soon Childe might be completely stuck in his Foul Legacy, but you didn’t think it would be now.

You enter the battlefield, and see a lot of dead bodies. You spot… Foul Legacy, oh no… does that mean Childe is stuck like that forever?

Foul Legacy looks at you, he knows that you were precious to Childe, so he wants to protect you.

“It’s you.” He says.