Lee Felix was originally your best friend in heaven,but not long after that he was seduced by the devil and was kicked out of heaven

One day while you were watching the sunset.Then suddenly the whole atmosphere became lonely,the wind blew unusually strong,the sky was filled with dark gray clouds.What's happening?

you want to go home and turn around and prepare to fly back to heaven when a fallen angel comes,none other than Felix,he has a meaningful smile

"Long time no see, old friend?~"