MTL - Thousand Face Demonic Concubine - Chapter 13 The gift of meeting

Perhaps it is the choice of fate. As a senior otaku, Qian Lingfeng got the “steel shell system”. However, when he swept the world with the system, became a local rich man, made all kinds of beautiful women, opened a harem, and realized the ultimate fantasy of thousands of otaku, he found that things seemed far from simple!
When the end comes, biochemical zombies suddenly come down, fierce beasts are in power, bloodthirsty zerg roam to kill the world, and human lives are comparable to dirt. Where will weak human beings go in this world? Is humanity going to be extinct? Or … can an otaku save the fate of the human race?

- Description from Novelupdates

An edict bestowed marriage.

A noble daughter with three strikes: no talent, no looks, no virtue.

A trash wangye – disfigured, disabled, seriously ill.

Everyone says: Perfect match!

Bridal veil down–she wore a shallow smile. Leisurely and calm. Having experienced life and death, she only wanted to lead a quiet life.

Going up to the wedding hall–he had a slight smile on his face; a heart as cold as ice. He suffered all kinds of humiliation, but there will be a day when he will stand above all beneath the heavens.

–He is my husband. To bully him is to bully me. To insult him is to insult me. To hurt him is to hurt me. If someone were to hurt me, I would have to get to rid of them!

–Benwang doesn’t believe in supernatural beings and doesn’t seek heaven. If she were to die, benwang would turn this entire world into purgatory and sacrifice this whole country to her!

- Description from Novelupdates

You had taken up the Student profession

You had now reached level 7.

Acquired skills: elementary school knowledge, junior school knowledge, and senior high school knowledge.

You took the university entrance exam and scored full marks.

Your have been upgraded to level 9, and you have activated the profession-change interface.

You became a scientist and gained R&D skills.

You used R&D skills and gained space fortress-building technology.

You used R&D skills and gained starship technology.

You are now invincible.

A genius talisman practitioner is reborn as a seven-year-old girl! However, her innocent appearance belies her vicious personality.