MTL - My Brother-in-law is the Prince - Chapter 439 Can you do whatever you want with money?

Silas Blackwood wakes up with a machine in his chest – his missing mother's parting gift to help him survive the war with the Fae. This “system” grants him bizarre abilities: neuromancy (magic of the mind), biomancy (magic of the body), and essomancy (magic of souls and essences). Oh, and it fused a leviathan's mana core into his body. Because why not become part sea monster?At Arcanium University, a military boot camp churning out mage knights, Silas finds himself targeted by rich brats who think being born with a silver wand up their ass makes them special. When they leave him for dead, Silas decides it's time to show these spoiled kids what real power looks like.As Silas grows stronger, he discovers he can upgrade himself by absorbing essences from magical beasts and demons. Just when he thinks he's got a handle on things, Silas learns his mother's alive, and now he's got a new mission: a rescue that'll take him and his friends straight into the depths of Hell.

Pinning her tall body against the hard wall, he looked into her beautiful emerald green eyes as he spoke in a deep voice, "I have two options for you," his body came closer to hers as he continued, "Be my girlfriend. Or," his lips turned into a sly smile as he whispered close to her ear, "Be my boyfriend." He even dared to wink right before her as his dark orbs glinted amusingly.

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

- Description from Novelupdates

Born as a lowly goblin, Leav refused to accept fate’s cruelty. Through sheer will and tactical brilliance, he clawed his way up—evolving, battling, and commanding monsters who once saw him as nothing. But power comes at a cost. As war rages and enemies lurk in shadows, Leav faces betrayal, brutal losses, and the cold truth—strength alone won’t forge a kingdom. With ancient magic resurfacing and rival factions closing in, can he rise above mere survival and claim true dominion? In a world where the strong rule and the weak perish, Leav must choose: remain a pawn or become a king.