FANTASY HISTORICAL CHINESE DRAMA

In space, between stars, galaxies and nebulas a magical Empire was, with the Emperor XiuXiu, 65 years, his wife died but he have 4 incredible children:

Lim (the crown prince, 25 years, the most oldest brother)

Jiajun (prince, 24 years, middle brother,)

Xiaobo (prince, 22 years old, middle brother)

Mei (princess, 16 years old, little sister)