WHAT! I Have To Kill Heaven's Son To Live! - Chapter 142: Reon Descends to the Mortal World!

They love gold, and they love silver. Even more so, they love gems that dazzle, like stars across the skies.
Firearms, jewelleries, and precious metals; A collector’s world will not be complete without antiques.
Storage auctions, old goods trade, re-estate sales and gold-digging. But the truth is, if one wants to make money, then the supreme way is through searching for the legendary treasures.
Holding the fort, there’s an ocelot, a wolf, and an Andes condor. At the side, there’s a loyal hound, an irascible ape, and an African honey badger. Who said that you can only rely on humans when treasure hunting?!

- Description from Novelupdates

Xion Aijawa thought his life was finally coming together. That is, until he tried saving a cat stuck in a tree, fell into a pit, and... diedIn his disoriented sate of “Freshly dead” the silly Xion accepted a strange request and ended up transmigrating into the world full of dungeons and Mana.He became illegitimate child of Marquis family hated by his three siblings.According to the memory of the original owner of the body, Xion only had a month to live.So, taking the cover of the banquet, Xion ran away. Aided by a mysterious Mall System, he makes his way to the distant borderlands, hoping to put his past behind him.But fate has other plans-. Xion ends up saving Darius Rael Darkhelm, the feared Archduke of the North, notorious for his ruthless and deranged nature.The silly Xion tried to run away but...Xion's heart thumped loudly as Darius effortlessly pinned his wrists using only one hand.“I've heard you tried to run away.”Darius gently caressed Xion's pale cheek, “That must be a lie... After all, I've given you things even the royal family can't have. Isn't that right, my dear healer?”Xion gulped when Darius's thumb brushed his lower lip as a chilling smirk remained on his handsome face.“I-I think I should leave, Your Grace. I've overstayed my welcome...”The room grew cold, and struggling Xion shivered.Darius's green eyes dimmed before lighting up with a dangerous glint.Xion felt a pit growing in his stomach when he saw the deranged archduke smile. Darius never smiled. And whenever he did, it only meant trouble.“You're right,” Darius said calmly. “So, let's get married.”Xion “...!!!!”

The hellhound is a legendary beast known for its fierce loyalty and formidable power, serving as a guardian of the underworld. During a cataclysmic cosmic conflict between gods and devils, the hellhound is tragically killed as collateral damage, his life extinguished in a battle far beyond his control.Millennia later, the hellhound is reincarnated as a human, awakening in a world that has forgotten his true nature. Retaining his past abilities, he must now attend a prestigious academy for those possessing supernatural powers, designed to train the next generation of guardians and warriors.As he navigates the complexities of human emotions and relationships, he must also confront the remnants of his past life. Whispers of the cosmic conflict still linger, and dark forces are at play, threatening to disrupt the fragile balance between realms. In a world where alliances are fragile and danger lurks around every corner, he must learn to embrace his identity as both a hellhound and a human.

After breaking up with his girlfriend, he accidentally acquired a genius system and rose from there against the heavens, becoming invincible..

- Description from Novelupdates