Chapter 1: who is this?

(Xiao x Aether modern)
A famous music and dance artist(Aether) had a quite unconfortable experience in public in the past, so he had to hide himself from society. He has a sister(Lumine),who is not famous but everyone knows that they are twins, so she has to disguise herself too. They changed schools and names, and they had to give themselves a new look in a quite interesting way... but someone is up to find out what is happening with with these two new students.