Knock knock!

Is that him again? Childe. Your friend who always visits your room secretly through the window. You knew you couldn't leave your best friend from that moment on.

When you were little, you were always together, living in the countryside in a pretty small kingdom with him. But when you get close to each other, you are declared the child of the king of the kingdom, and you are forced to live in his palace and abandoned Childe.

However, Childe did not give up either. He always visits you in the middle of the night through your bedroom window, carry out your secret relationship so that they won't find out.