The Greatest Mecha - Chapter 3 - . A Brief History Of Humanity

As a boss with space plant abilities in the apocalypse, Lu Yao once traveled to the future, became the director of a nursery school that was about to close down, and became a rare animal human on the verge of extinction.
The food she made at random can cure the genetic disease of the cubs in the welfare home. She punched the cubs’ scum fathers and scum mothers, and kicked the remarried families who abandoned the cubs.
It is such a good kindergarten successor dean, who is attracted by that single cool imperial marshal!
Since then, the barrage in the live broadcast room has become:
Imperial Citizen A: Dean A, I really want to marry.
A certain big black dragon: Shut up! This is your marshal’s wife!
CP: Dean Lu Yao, who is extremely protective of short-sightedness and loves cubs, X the imperial marshal Helanjia who loves Shang Yunxi more than cubs
Brief: There are no bad cubs, only bad big ones.

- Description from novelbuddy

A 30-year-old NEET is reincarnated into the body of an otaku that choked to death on instant noodles. As he comes to grips with his new life, he realizes that this world is subtly different from Earth. The denizens of this world are far better looking, and this new world also possesses futuristic technology as well as mysterious Yin Yang masters!

“Your Majesty, please break-off my marriage with Her Highness the Imperial Princess. I fell in love with Lady Adriane Reese.”

“Six engagements, Six break-ups.”

The princess’s fiancé always had an affair with the maids!

“I don’t want to marry the crown prince, I want to live with my father forever…”

“Such a useless being. Begone!”

The princess who is known to be weak and s*upid, Apollonia.

But she has another hidden face…

“It’s because the throne is hard to obtain, my father also spent 10 years on trying to kill my mother, the empress.”

As Apollonia grinned, her red eyes shone intensely. Usurpation of the throne.

Her goal was clear. She was never shaken.

‘I want to live my life with my father.’

To be exact, I want to live my life where my father is seated.

Please wait, father. Your daughter is on her way.

To take back everything that was stolen from me.

Hai Xiu has a slight social disorder. After he transfered school, his new teacher tried to help him to treat it slowly by giving him the task of sending and receiving homework and test paper from his fellow classmates. Although Hai Xiu has communication problem, he still stumbled around trying his best to do so. However, he accidentally misplaced the test paper of the school’s resident “bad student”… And thus, started their sweet story together…

- Description from Novelupdates