The Demon Among The Knights - Chapter 9 - "The Echoes of Power"

He is an undead who is devoid of all humanity, he is the one and only supreme overlord, he is a man who has severe mysophobia.

There are many people who try to act cool in front of him, whatever soldier king, assassin, system user, transmigrator, reincarnator, the strong returning, the strong coming down from the mountain, person coming back from the immortal world, reincarnation of the devil king, immortal emperor possessing someone’s body, and so on, all of them do not know what will happen next

- Description from Novelupdates

Xiao Ran transmigrated to a fantasy world. As a dungeon guard in the Celestial Dungeon, with a special floor called the Purgatory meant for powerful demons and martial arts experts, he faced a huge challenge from the start. The Eldest Princess acquired a forbidden martial arts technique and was banished to the Purgatory. However, no one was powerful enough to restrain her. All the dungeon guards were defeated. Xiao Ran stepped up and declared, “Your Highness, it’s better for you to behave yourself on my territory” and effortlessly subdued the Eldest Princess.

He progressed from imprisoning the Eldest Princess to delivering the Great Xia Kingdom from the evil clutches of various demons and evil martial arts experts.

…

Xiao Ran was the mastermind behind the scenes.

Traveling to the world of Hokage, Kamiyo Colt witnessed the chaos of the Nine Tails firsthand.Without any special powers initially, he planned to develop quietly and survive until the Infinite Tsukuyomi. However, when he first trained his Chakra, his system finally activated.The system's rules were simple:By healing others, he could gain random attributes and skills.“Heal Uzumaki Naruto to receive pure Ashura Chakra!”“Heal Uchiha Shisui to gain his bloodline talent!”“Heal Sasuke Uchiha to obtain pure Indra Chakra!”In this way, Colt steadily developed his abilities over more than ten years.During the Fourth Ninja World War, when the ninja coalition saw him suddenly knock out the Six Paths Madara with a single punch, he looked innocently back at them.“What? I'm a medical ninja. Doesn't it make sense to defeat him with one punch?”

Teela married King Heavenly because she loved him, but life in the Heavenly household was anything but euphoric. Lettie, her hard-as-nails mother-in-law, treats her like an unpaid servant. The family treats her like an outsider. King treats her like a shadow, transparent and forgettable.When Lettie presses Teela to prove her value to the family or get out, Teela has a decision to make. But she’s not leaving without a fight.King Heavenly rules Heavenly Industries with an iron fist, but he leaves his home life to his mother to manage, and that includes the management of his boring little wife. Teela has never complained. She’s never done anything interesting, for that matter. She’s just one more responsibility in a long line of responsibilities that King shoulders on a daily basis, and that is exactly how he treats her — as a responsibility that he’s delegated to his mother.Suddenly Teela steps out of the shadows and into a fight with him and his whole family, and King is baffled by the ruthless actions of his now daring wife. He’d always heard that vengeance is a dish best served cold, but Teela is coming in hot!