Counterattack System appeared when I'm already At The Mahayana Realm - Chapter 678 - 677: Design Approach of the System

In the fantasy world ruled by Matriarchy, Kael of the Ancient Moonstone House, was working as a guild receptionist. Throughout his life, he was protected by his mother and later, younger sister, who was considered one of the highest potential individuals in the Queendom of Elyria. One day, he hears that his sister has gone missing and his family has accumulated debts of over 127 million gold coins to the Bank. The Queen comes to his rescue, paying off his debts and in exchange, he has to marry her five daughters, who each excel in a domain of their own.Having the five imperial princesses and the Queen herself as the backing, Kael has become one of the most protected individuals in the Queendom. Little did his wives know that Kael had another identity. He is the most dreaded yet noble Assassin of the imperial city, “K,” one who hunts down the criminals who escape punishment either because of insufficient evidence or using their connections.Follow Kael's journey, as he navigates his life as the protected figure in the light and protector of justice in the shadows.

“You better stop the fucking prank, woman, and just pick up your phone and call your alpha! Otherwise, I will press the damn button and blow you up,” A man with a very ugly-looking scar on his face said menacingly, holding a time bomb remote control in his hand and shaking it back and forth before a woman.In the last moment of her death, Rose looked into her heart and cried bitterly.“If I had a second chance, Rolan, I would never have agreed to marry you. I would never have had hopes in you.” _____On the day of her sister's wedding, Rose found herself thrust into an unexpected role as the bride when her sister failed to show up. Marrying a man who had loved her sister for three years, Rose held onto the fragile hope that he might one day care for her. But her dreams of love quickly crumbled—he ignored her, treated her coldly, and never gave her the attention she longed for.Even at her lowest, when Rose’s life hung by a thread, he was nowhere to be found, choosing instead to enjoy his time with her sister. Rose’s heart shattered as she took her final breath, consumed by betrayal and despair.When she opened her eyes again, she was back in her younger self—not before the wedding, but on the very same day she was meant to die. This time, Rose vowed to rewrite her story. She would stop loving him, leave him behind, and refuse to let herself be caught in their web of betrayal again.But the peaceful life Rose planned never came to be. Against all odds, she discovered she was pregnant—carrying his child. Now bound together by this unbreakable link, Rose must face the man she once loved, all while trying to guard her heart.Why is he chasing her now? Why wasn’t he with her sister when she ran away and left him? Why does he seem desperate to win her back when all she wants is to stay far away?

The figure of the Armada seems to be still riding the wind and waves in the Atlantic Ocean, and the gold of South America still seems to flow in continuously. As Alfonso from the Bourbon family returns to the Royal Palace of Madrid where he was born, the story begins here…

- Description from novelbuddy

This novel is also known as My Apocalypse Domain

On doomsday, Tang Yu unexpectedly got the Lord of the End System, he remained very calm.

Lack of experts? I will construct a pub so I can make ten draws in a row; 　　

Lack of food? I can’t be too cheap with the large pack full of food supplies sent from the market;

Lack of safety? Arrow Tower, Mage Tower Artillery and all kinds of automatic defence buildings. Having many isn’t too many;

Lack of equipment? Workshop production must produce high-quality items. Sir, would you like one? We are having a 20% discount special at nine!

…………　

In short, this is a story of Great Lord Tang building up his territory, attacking some monsters, and ripping off…… Cough, making some money at the same time.

- Description from Novelupdates