The Paladin in the Abyss - Chapter 3: Prologue_

The Special Investigations Unit is a covert organisation that no-one in the city knows about, dedicated to investigating bizarre occurrences beyond the comprehension of the living. The Chief Zhao Yunlan isn’t a simple guy either, being the inheritor of the Guardian Order, he has always been a righteous conformist, excelling between realms of the living and the dead. While investigating a school suicide case, Zhao is attracted to the calm and reserved Professor Shen Wei, but the Professor seems to be rather fickle towards him…

- Description from Novelupdates

For decades, mysterious dungeons have been popping up all over the world. The resources found within these dungeons have completely reshaped human society, turning life upside down.In this world, Tsukasa Kisaragi, a high school student and active dungeon explorer, harbors a lingering regret.Back when he first got his explorer license, his social anxiety held him back from forming any party or making friends.But whether it was a blessing or a curse, Tsukasa was born with an extraordinary talent for dungeon exploration. He was so good at it that even solo, he could conquer any dungeon without breaking a sweat. He got used to going it alone, and before he realized it, he had become one of the few EX-rank explorers in all of Japan—so rare they could be counted on one hand.Despite his incredible skills, Tsukasa kept his true identity hidden, living a low-key life. But one day, he stumbled upon something that would change everything: dungeon streaming. And from that moment, his world would never be the same.

Han Seo-jin is a top ranker of Pick Me Up with an account name of Loki.Due to a bug he encountered while clearing one of the top floors inside the game, he was summoned inside the game as a hero… a Level 1… 1-Star Hero…Loki, the once called, master of masters, is now a [Level 1] [1-Star Hero] that must follow the orders of his master.However…