Oukoku e Tsuzuku Michi - Chapter 576.2

MC (female protagonist) dies in a plane crash and wakes up in the body of a beautiful but corrupt and lascivious prime minister in ancient times, Zhang Qinglian. As circumstances decree, he (she) cannot reveal that the original owner’s soul is gone else calamity might occur. So he (she) decides to walk a righteous path, determined to help the lovely but simple little emperor rule the country. Not backing down after facing torture, not losing courage, destroying rebellions and facing off with scheming princes.

- Description from Novelupdates

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

The first time they met on a blind date, Ji Sang agreed to Fu Yisi's proposal to get married.The second time they met, they tied the knot at the civil affairs bureau.The third time they met, just back in the country, Ji Sang looked at the man who came to pick her up and decided she wanted him to be her model.Ji Sang thought her husband, whom she married through an arranged marriage, was a gentleman on the outside but cold and indifferent on the inside.But unexpectedly, the man turned out to be so sultry and scheming!Fu Yisi: 'Do you like jawlines, hmm?Fu Yisi: 'Want to touch?'Fu Yisi: 'Am I good enough? You can check yourself.'Ji Sang is a giant in thought but a dwarf in action, rendered powerless by his teasing. She imagined it countless times until one day after an argument between them, Dr. Fu leisurely took off his shirt.'Didn't you want to shoot me? I'll let you shoot to your heart's content.'A socially anxious and aloof photographer x A cold-faced, quiet, sharp-tongued but kind-hearted Dr. Fu.

"I hope my wife liked the arrangements... for the wedding night."