Hamen!

During the chaotic Third 'Door Crisis,' Chen Lin lost every member of his family. His father went missing in the battle against [Dagon], while his mother and younger sister were taken in their sleep by [the Debt Collector]... Chen Lin was the Debt Collector's next target.

But God sealed every window in the house just to leave you one door. This door was antique and bathed in a dreamy, illusory glow. Right in its center was an orange, round-headed cat, lifelike and full of dragonlike majesty. Chen Lin could almost hear its booming "Ha!"

With a ghost behind him and nowhere else to turn, Chen Lin pushed the door open without hesitation...

"So all my life, I've just been missing a door like this..."

"Ha! Door!!"

(Fan fiction, infinite-flow, the official sequel to You You Hai)