I Just Delivered a Takeaway, How Did I Become the Lord of the Abyss?

In order to pay off the huge gambling debt owed by his parents, Su Yang, who had just grown up, became a deliveryman, delivering goods to a "happy apartment" that had disappeared from the map. The order here is weird: [Room 304 needs a copy of 'Tears of First Love', note: it needs to be salty. [Room 404 requires three pounds of 'fresh fear'. Note: Do not scream, as it will affect the taste. [I need a cup of 'Forgotten Time' on the top floor, note: remove the ice, thank you. Su Yang discovered that as long as he could deliver the order, no matter how outrageous the order was, the reward would be frighteningly high. He fought hard for money! Stealing the tears of the school beauty who just broke up, going to the haunted house to collect the fears of tourists... He does it all. He doesn't know that "Happy Apartment" is a "transit station" connecting the world and the abyss, and its residents are all terrifying beings from the abyss. And he is the only "legendary delivery boy" in a century who can deliver "conceptual" orders. With each order delivered, he would gain a bit of the power of the abyss. Until one day, the "Knights Templar" who hunted abyssal creatures surrounded the apartment, and they saw Su Yang holding "Fear" in his left hand and "Despair" in his right hand, shouting to the apartment: "Whose order? If you don't come down to pick it up, I will give you a bad review!" At that moment, the holy light of all the knights was trembling.