In This Life, The Greatest Star In The Universe - Chapter 317:

A new emperor rules each year in Yohuachanca.Only the most delicious of food graces his palate; the realm’s most beautiful women fill his harem; his palace dazzles the mind in its beauty; and four priestesses counsel him in all matters. The life of an emperor is good, luxurious, and short. For at the year’s end, he is sacrificed to the Nightlords under the light of the Scarlet Moon.I am Iztac. A pisspoor orphan and the year’s emperor. A sacrifice bound for the altar. But the vampires have made a mistake this time. For I am a sorcerer, whose soul journeys into the secret underworld to plunder the secret spells of the dead. There, in the darkness, hides the power to drag the Nightlords off their throne. I have a year to find it, or perish for good.I may not be the first emperor, but I will be the last.

Seventeen-year-old Dominic Hayes had always been a quiet dreamer—chained to hospital beds, IV drips, and the ticking clock of his diagnosis. Leukemia stole his strength, his youth, and finally, his life. But fate had one more surprise waiting for him beyond the veil.When Dominic awakens, it’s not to the afterlife he expected—but to the crashing waves and boundless power of the ocean itself. He has been reborn as Poseidon, the Greek God of the Sea. With divine power surging through his veins and immortality in his grasp, Dominic is no longer the dying boy in the hospital—he is a god.But power comes with purpose.As he grapples with his new identity, ancient forces stir. Old gods rise, long-buried secrets awaken, and the balance between realms begins to crack. Dominic must decide—will he embrace his divine fate and protect the world he once had to leave behind, or will he drown in the very depths of power he never asked for?In this epic journey of rebirth, grief, and second chances, Reincarnated as Poseidon is a tale of what it means to live, to lose, and to rise again with the fury of the tides.side characters :Zeus, Hades and Athena

In the tenth year after the new era, the world finally came to an end. Zhang Mu truefully waited for his death, but unexpectedly found that he had returned to ten years ago. With his memory about the future, he swore that he would change the calamitous history, saving the earth from being destroyed! Walking dead, zergs, evolvers, and various mutated animals… nothing can stop him! The first step is to retrieve his identity as an era merchant , then find all the treasures he can remember to enhance himself!

- Description from Novelupdates

Bought it right away.