MTL - From the Dungeon, Slaughter the Demon Apostle - Chapter 564 Eye of the Abyss

After dying from betrayal, Thomas reincarnates as Jolthar Kaelzhar, the neglected son of a powerful clan, just after his brothers kill him. With Jolthar's memories and the blessing of Qalena, Thomas vows to rise from his lowly position and claim power in his new life.

Lingyun, a fierce and savage cultivation genius takes over a dead teenager’s body. Coincidentally, they are both named Lingyun. Set in a alternate version of the 21st century, teenager Lingyun has been killed by someone with a grudge.

- Description from Novelupdates

Nan Yu was brought by the Nan Family back from the countryside to pretend as the fake heiress, being forced to marry the paralyzed and tyrannical young master of Huo Family on behalf of the real heiress.Before the marriage, she was just a fake heiress who had been abused since childhood, despised by everyone, and had nowhere to call home.After the marriage, she became the heiress who was coveted by many, lavished with love, and had countless brilliant hidden identities.Such a perfect person, the only pity was having a disabled husband.Everyone advised her to kick him out and find someone better.But a few days later, they saw the man who had been in a wheelchair stand up and become the rich and powerful ruler of the Huo Family.He then pinned Nan Yu in a corner, held her by the waist, and with a hint of red in his eyes, and said, “Sweetie, I heard that you want to divorce me?”Remembering his wildness in bed, Nan Yu shook her head violently, “No! Those are all rumors. You are the only one I want to spend my life with!”

This legend tells the tale of the protagonist, Kuroki summoned to protect the demon king from the hero.

Kuroki, unbeknownst to him, suddenly came to another world. He was summoned by the demon king, Modes. The territory which the demon king overrules was in the midst of being destroyed because of the hero. He had no choice but to bow before Kuroki.

“Please save us, Savior Dono!”

Kuroki nodded, deciding to save the demon king due to an unexpected turn of event.