Introduction: “Doctor, it seems there’s something wrong with my emotions.”“There’s a clown in the West City circus who can make everyone laugh. I think he can certainly help you.”“But Doctor… I am that clown.”“…”……Waking up in a strange room,Leonard Churchill finds himself lying next to a stunning woman.Assuming good fortune has come knocking,but the eerie part is, she’s a corpse without any heartbeat or breath.Just when he thinks he’s been roped into a bizarre murder scene,After a closer inspection,He realizes,Shockingly, she isn’t human!This is a fantastical world after the Great Catastrophe, under the fog-covered land lies countless Underground Cities left by the ancients.A Treasure Hunter wearing a clown mask travels alone in the dark.He is Joker Leonard Churchill, the Catastrophe King!...