Shadow is a demon who lives in the space above the five thousand worlds. He and Yi have been friends since childhood. Demons have no emotions, and the sanctity of angels makes them sick. Until one day the war broke out and Wing died. Of course, the devil never dies, he just dies and forgets his instincts. He was sad, Tsubasa was a great big brother to him and was well loved by him. The fall of the devil is basically equivalent to death. If you don't remember who you are and just think of yourself as a human being, what is the difference between this and the death of a human being? Until a system found him and offered him an opportunity to retrieve his wings, which was to go to different worlds, fall in love with different wings, and conquer them. Ying was originally a devil, and he had no objection at all to "having sex with the big brother he had admired since childhood" and readily agreed. He's not the original Wing anyway, is he? Main attack, strong, no outline, pure quick travel, gold finger bold, plot is simple and does not require IQ.