System 666 belongs to the Space-Time Bureau. 666's Host, Cang Dad, is already a mature young man. But look at how graceful and elegant 222's Host, the music cultivator, is! Music Dad has no idea what to expect and is trembling with fear. He just wants to cling to himself in the academy and wrap himself up in his little blanket. When Music Dad was repairing a rift in space, his coworkers at the Space-Time Bureau offered him one piece of advice: When you're out there, young man, take good care of yourself!
Theme: Tragic romance
