MTL - The King’s Avatar - Chapter 7 Night cat demon

Justin, a skilled gamer, is pulled through a dimensional gate into a dungeon resembling his favorite game—just three days before the end of the world. Faced with monsters and ancient magic, he rises from novice to the most feared dark magus , surpassing all others. Witness his unstoppable journey to ultimate power as he races against time and destiny.

Anyone who could construct a stable Spell Model could become a Wizard — that was the Wizards’ ultimate secret! Having been given a new life as the son of an aristocrat and armed with a super quantum computer from his past life, Spell Models came as easily as breathing to Merlin. With this overwhelmingly huge advantage, would Merlin become the greatest Grand Wizard of all time?

- Description from Novelupdates

It was started with a harmless request, “Jessica, clear out a room for Zoey, she'll be moving in with us for the time being.”Jessica's marriage soon ended when that 'guest' climbed up the ladder, from a guest room downstairs, to Jessica's bedroom, and then, her husband's bed.After losing in the fight for her husband's attention and love, Jessica realized it was time to wear back her garment of dignity and respect. She signed the divorce papers and left the country.Two years later, she returned as the heiress to a conglomerate, but her husband was at the airport, waiting to welcome her home.“When did I say I didn't love you, Jessica?” he asked.