Naruto: Unlocking Kaido Template - Chapter 177

[Warning: Mature content, R18, Harem, Monster Girls, No NTR, No Rape ]He was a prostitute who had a simple dream. Living in peace, going to college and getting a good job like an average man of his age. But when he decided to leave his old life behind and pursue his dream, he was killed by demons.But he got a second chance as a dragon king in a different world. A world filled with monsters and strange tribes that he had never seen before. As the protector of that foreign world, he tried his best to regain his power before the other tribes realized it. Then ... he discovered the secret of the Dragon King's power was he must build a harem ...

The world I transmigrated into was a dark fantasy game universe, devoid of hope or dreams.Doesn’t feel like it at all, though.

The unparalleled Demon King Ye Xuan, who was able to heal the death or the living alike and holder of the medicine Holy Scripture, was betrayed and killed by his fellow Demon Kings. But he reincarnated into the body of Ye Xuan, the prodigal son of the Ye family and vowed to himself that he would return to his peak and take back everything that belonged to him!

- Description from Novelupdates

Having transmigrated into the world of Journey to the West and become Tang Monk, equipped with a gaming system that allows for battling demons and leveling up, while looting equipment, from then on, the demons on the path to the Western Heaven were in danger. Monk Sha: Big Brother, it’s not good, another demon has been captured by Master. Tang Monk: You all listen to me today, it’s not you protecting your master on his journey to the Western Heaven to seek scriptures, but rather your master has to drag you all along, you know? Without you, your master alone would have fought, uh, made it to the Western Heaven by now...