MTL - One Useless Rebirth - ~ Related to the work

A man who was once called the world’s strongest agent ended up becoming a teacher after his retirement, to train a new generation of agents. After many years of training his disciples, he was killed at the age of 60 by a secret organization’s ruse and was reincarnated in another world with his memories intact. Though he was surprised by the existence of magic and the strange species in that world, he quickly adapted to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his rigorous discipline, in order to reach his goal: Resume his career as a teacher which he left halfway through in his previous life. This is the story of a man, who, based on the memories and the experiences of his previous life, became a teacher who travels through the world with his students.

Civilization is destroyed and records lost. Only Dudian survives in a cryogenic sleep. Three hundred years later, Dudian wakes up and must become Dean to survive. Who can he trust in this world overrun by monsters without and within?

- Description from Novelupdates

Xia Muqing is originally an archaeologist when she unexpectedly transmigrates. In another life, she becomes the useless daughter of a reputable family who is mocked and bullied by everyone. A brand new Xia Muqing is reborn from the ashes. From then on, she uses her skills and medical knowledge to subdue beasts and to seek revenge!

She uses poison to repay her sister who was born of her father’s mistress. She swears to make those who harmed and betrayed her pay with their blood!

It was said that the young lady from the Chi family, who was raised in the countryside and didn't even finish her sophomore year of high school, was brought back home. People were looking forward to seeing her become a laughingstock.

Unexpectedly—

Why did the grandchildren and sons of Kyoto's top prestigious families eagerly join the same class as Chi Gui?

Why did a world-renowned medical expert converse so kindly and familiarly with Chi Gui?

And then there's the ruthless, unapproachable prince of the Fu family, whose demeanor did a complete 180, showing off Chi Gui daily in chat groups?

Others:

“My girlfriend cooks well!”

“My darling plays the piano well!”

Fu Si: “My wife excels at dissecting corpses.”

Crowd: …

Chi Gui: …

These people are so annoying.

[A steel-hard, candid major boss lady X refined but flirty business tycoon]