MTL - Reborn In the Tokyo Bubble Era - ~ About the update and the plot, explain

With the unexpectedly obtained unknown civilization technology, bionic robots, artificial intelligence, quantum mechanical transmission, supercomputers, plasma thrusters, nuclear fusion, these black technologies are constantly being manufactured in Wang Xiao’s hands.

Knowledge is power. With the help of unknown civilization technology, Wang Xiao, who has acquired this knowledge and black technology, has tickets to a better future and a sea of stars.

- Description from Qidian

Viay, an ISRO scientist, gets reincarnated in the Vijayanagara Empire, which has not yet weakened but unified South India in a parallel Earth similar to the current one, with slightly altered people and events in the 17th century. Watch how he guides the ancient nation back on the right track again.

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Qin Yu had lost both her parents when she was young and was all alone. Since then, she lived with her father’s comrade-in-arms.

Due to the huge inheritance that her father had left behind, her foster mother had attempted to murder her repeatedly. In order to survive, she could only pretend to be a mentally disabled child.

It wasn’t easy for her to reach adulthood, yet her foster mom wanted to marry her off to a powerful and influential family.

She heard that her fiancé was blind and had a violent personality.

However, no matter how ruthless he was, was he as ruthless as her foster mom?

In order to escape from this terrifying family, she decisively agreed to marry that person in her sister’s place.

Soon, news of a fool marrying a blind man spread like wildfire.

Their marriage had become the hottest laughing stock locally.

However, after she married him, she realized that everything was not what the rumors said.

Her husband was not blind at all, and he was not cruel. He was gentle and refined, and he treated her like a treasure.

And she wasn’t mentally deranged. She’d only pretended to be a fool to flee from her foster mom’s attempted murders.

What surprised her, even more, was that she had known her husband for a long time. A long time ago, they had been best friends online.

It was no wonder that her husband was as cold as ice to all women, lying that he was blind and unapproachable. But in front of her, he was as gentle as a lamb and did not hide anything.

Chu Mu Yun relied on his story of 《Demon Realm》 to become a one-hit wonder in JJWXC, but the him who had written seven mental cases to abuse seven mental cases to death would never have expected that he himself would transmigrate into this shitty novel!
What the hell is this system on the bracelet?
And what the hell is this either propose to seven men, or suffer the taste of a tragic death experience under the hands of these seven people?
I just wanted to write a novel to satisfy my bad interests, who would actually want to get tangled up with a bunch of mad dog sad*st crazies?

- Description from Novelupdates