On a torrential rainy night, Lewis Kane is accidentally hit by a dump truck and sent straight to the underworld. A judge is fretting over problems plaguing the three realms when Lewis is mistakenly brought in. The judge notices Lewis glowing with golden light—the mark of someone with immense karmic merit—and sees hope. He appoints Lewis as the liaison officer for the three realms,serving as the underworld’s representative in the mortal world to help meet their quotas. When Lewis refuses, the judge reveals that Lewis is cursed with nine lifetimes of loneliness, and this is his ninth life. If he doesn’t accept the position, he’ll be trapped in endless reincarnations of solitude. Terrified, Lewis throws a tantrum, begging the judge to grant him a life of romantic fulfillment this time around. The judge tosses him a smartphone, explaining it can connect directly to the underworld, then sends Lewis back to the mortal realm. And so,Lewis’ destiny begins to shift because of that one mysterious phone.
