Counterattack System appeared when I'm already At The Mahayana Realm - Chapter 673 - 672: The Proxy Human Emperor

What would you do when you wake up in another world with an Analysis system backing you up?

Sato Inugami fell victim to an explosion in his apartment which led to him reincarnating after his death.

With the help of his Analysis Helix system which helps him store skills and knowledge about the world of fantasies.

From ruling over elves to build an entire nations with the help of his system, beautiful maidens and subordinates, Sato soon found himself being formidable.

With his success soon known around kingdoms that posed to be a threat to him as he climbs up the rank.

Sato must now protect his people from Demons, Kings, and even gods as he rose amongst the ranks to become the strongest Ruler.

He rose from abjection and achieved eternity in glory.
He embraced the prettiest beauties and killed the strongest opponents.
He was able to shift the clouds into rain and cover the sky with one hand.
He could overrun the entire world and go anywhere as he pleased.
He pacified wars and held the world in awe.
He was matchless in the world.
However, his hair turned white overnight for his beloved woman and he was on the verge of death.
He was surrounded by enemies who were trying to take his life.
He struggled his way to become mighty and fought for everything he cherished.
For this age, he was the only king of the Dark World.
His name was a byword for might.
As a man living in the world, his only ideal was to pursue brilliance.

- Description from Novelupdates

Yu Youyao had a nightmare. In her dream, she was married to the Marquis’ son, Song Mingzhao, and had become a mere medicine-human for her third sister, Yu Jianjia. After having blood extracted from her heart for three years, Yu Youyao’s life was nearing its end, so her wrist was slit and she died just like that.

Upon waking up, her heart thumped wildly and she decided to choose the first man she saw to escape that tragic fate. Thus, she clung onto the leg of her maternal cousin who had come all the way from the You Kingdom. “Cousin, I’ll be good to you for the rest of my life.”

Zhou Linghuai looked at the girl nestled in his arms. She had a lovely face and puppy eyes. Despite his usual ruthlessness, he suddenly found himself unable to reject her. And so, he became Yu Youyao’s protector, helping her to take revenge on those who bullied her, fend off the schemes of others, and reject all of her suitors. He even helped her attain glory and magnificence.

Once Yu Youyao reached adulthood, events started to progress according to her dream. The Marquis’s son, Song Mingzhao, had indeed come to request for her hand in marriage. However, Zhou Linghuai pressed Yu Youyao against the wall and said in a low voice, “You’re mine. You can’t marry anyone else!”

Being in the World of Arknights...Thing's are going to change drastically and...You best be ready for what's to come ahead.