After your adventure in Inazuma where, the Raiden Shogun struck you with lightning, it left a huge scar on your back, being visible because your dress is open back.

One day while you were using the crafting table in Liyue late at night, you didn’t notice Xiao watching you. He saw the mark on your back and was a little worried. He immediately teleported behind you, and held onto your waist tightly as he buried his face in your shoulders from behind.