DEMON CASTLE - Chapter 54

Ha Joon Kim is a loser. No amount of luck was going to save him from that fate, he was always going to be that loser.But what happens when he dies and gets reincarnated in another world where everything seems different. Where gods and heroic spirits of all eras are in existence.Not only that, but his smartphone is with him? And it grants him skills?.[Instant learning acquired][This skill allows you to gain abilities from leaning]He knew the essence of water.[You have gained a new skill.][Water manipulation.][50 endurance points have been deducted.]....[Knowledge of the gods acquired][This skill lets you tame… tame…]Giving another chance to live life, Ha Joon decided he wasn't going to be that loser anymore, instead, he was going to help the king of Camelot, or rather, The queen of Camelot rule a successful Kingdom.From getting the goddesses to fall in love, to even making Merlin beg for his attention, he was finally getting everything he wanted from life.The traveler… the only human in the old world to tame the gods.

To pass as an imperial concubine, one must be professional.

Actually, the profession of an imperial concubine is pretty good. The emperor will accompany you in eating and drinking, and even pay you for it. What’s not good about that?

- Description from Novelupdates

A tale of an ordinary senior high school student who becomes a legend by dispensing plagues and controlling vicious virus insects.

He is the master of six kingdoms. As long as he wanted, his cavalry is ready to wipe off any country.