Use first and repay later: Advance the future cultivation fruits - Chapter 11 - , Black Boxing

The world that nurtured the civilization which reached the pinnacle of magic was on the verge of destruction.
The last survivor transmigrated to the past, when the magic civilization started growing, as countless mages were still fumbling their ways through the thorny paths of magic knowledge.
He, who came from the end of the magic era, aim to reach the pinnacle of magic.

Waking up, I discovered that I had become a cat with superpowers...

Born into the Thornhill family, Eliana should have been dealing with succession planning and heiress training. But instead, she’s dealing with the crocodile tears of her cousin Alexa.As if stealing her Fiancé wasn’t enough, she’s out to pin everything onto Eliana.Trust issues - Eliana.Popularity issues - Eliana.Landslide - Must be Eliana.In an attempt to end her cousin’s jealousy-ridden machinations, Eliana is forced into a relationship with a childhood disaster, Lucian Alder Sinclair, her most tempting nightmare.Lucian Sinclair has always been synonymous with perfection, at least to most people. But to his family, finding someone who could handle his aloofness has been the top priority.Forced to return to his home country at the behest of his grandfather, Lucian fortunately encounters Eliana who’s in need of a ready-made partner.Constantly up at each other's throats, then into each other’s arms, may the lies they’ve told hold up against discerning family members and unrelenting pursuers.

Jake had spent his entire life buried in textbooks, chasing one exam after another — until he finally graduated from one of the world's top universities as a nuclear engineer. He thought the hard part was over. It wasn't.On the very first day of his new job, a speeding truck ended it all.But fate had other plans.Jake woke up in the arms of a stunning goddess who offered him a second chance — along with one extraordinary skill of his choosing.[Hypnosis (SSS-Rank): The power to control minds and issue irresistible commands.]Reborn as the bastard son of a noble house in a fantasy world, Jake quickly realized he held a power that could change everything.“Lady Aria,” Jake said, his voice low and calm, “you'll find yourself wanting to obey me more than anything else.”The cold, dignified head maid stiffened, her eyes clouding with confusion — then softening into eager submission.“Stepmother,” Jake smiled lazily, “you've been working too hard. You need to let me take care of you... personally.”The once-proud woman faltered, her cheeks flushing as she nodded without hesitation.“Miss Evelynn, heir of House Marlow,” Jake said casually to the visiting noble, “you'll trust me more than anyone else in the world.”With every whispered command, Jake planted a seed deep inside their minds — seeds that would soon blossom into absolute devotion.***Check out my discord for character illustrations: https://discord.gg/Z9pY9tE9e8(No Yuri/No NTR)