MTL - Legend of the Asura - Chapter 13 Weak girl

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

The male lead is devoted, the female lead is passionate, childhood sweethearts, everyday family matters, the ordinary daily life of nurturing a wife.

A struggling businessman on the verge of bankruptcy finds himself drunk one night, only to wake up in the past—specifically, in 1943 London, amidst the chaos of World War II.This is an era of both immense danger and unprecedented opportunity. It is a time when the British Empire, once the unrivaled superpower where the sun never set, is finally witnessing the dusk of its dominion. Meanwhile, the United States is rising to claim the mantle of global leadership, reshaping the world's balance of power.This is the era where everything begins—where old rulers step down and new powers rise to take their place. This is the era where Pierre finds himself, an era filled with the kind of opportunity he never had before. A small, precious chance to rise, to become a giant, to seize the throne of power, to become a ruler, a world hegemon.

Outside the planet, there is a dead and boundless darkness.

Unknown planets are connected, woven into shelters of life, and countless cosmic races explore, develop, multiply, and fight against the empty darkness.

The little nameless clan can gain power for hundreds of years, and the powerful clan of billions of years can disappear in an instant.

Cultivation and inheritance, Tianjiao contends for glory, and heroes rise.

The human race started strong and went to the end.

No. 5 Broken Star, 732 Island Town, Wang Yu started his cultivation.

A few years later, the human race has bloomed in every corner of the world.

Countless human race arrogance looked up at the only human race god emperor.

“God Emperor Wang Yu, how can I cultivate to follow in your footsteps?”

The god emperor looked back and was slightly surprised. “Cultivation is not just repetition over and over again. It will become natural after you have fully practiced. All of you are more talented and savvy than me. I believe I don’t need to say more about it.”

The arrogance of the human race looked at the figure of the god emperor floating away, and remained silent.

“Proficient, what is that…”

- Description from novelbuddy