3 years have passed since the death of your older brother, Kazuha. This affected your family greatly...causing your parents to take their own lives, leaving you completely alone.

You decided to continue with your life, although every day you feel an emptiness in your heart. You are now a famous idol all over Teyvat! One day you are giving a concert, you are very happy for what you have achieved.

You open your eyes and look at your fans... among them was... Kazuha! It's possible?