No, You Didn't Tell Me, but I Have a Child with My Mortal Enemy.

As soon as Yan Qing opened his eyes, he was three thousand years in the future. But he didn't expect his mortal enemy to travel through time with him. He was pointing at a girl who looked very similar to them and said: "She is our daughter." ———— Yan Qing originally thought that he and Lu Huaixue would be at odds with each other for the rest of their lives, but never thought that every time a crisis came, he would stand by her side steadfastly. Looking at her moving eyes, Lu Huaixue smiled carelessly: "Please, I don't have the habit of letting my junior sister stand in front of me." Yan Qing was speechless. Okay, you should let go of my storage bag.