MTL - Miss Wen, Make Your Heart Beat - Chapter 138 Mr. Xie's subordinate Cheng Yan

Welcome to Freia. A continent where evil magi ruled. Until firearms came, that is. Now the people live free of those demons…

More, however, must lurk beneath the surface.

Claude, a transmigrator from another world, finds himself in the midst of this changing world, attending ‘middle school’. Or, as he calls it, ‘boot camp’. His destiny was to graduate and join the military, but the future is seldom so simple.

His life, and the world, is set on the path of upheaval and chaos the day he finds a cookbook.

A magical cookbook.

- Description from novelupdates

Lynn embarks on a fantastical journey to a realm reminiscent of medieval Europe, yet infused with extraordinary magical abilities. Here, the very fabric of reality is governed by the enigmatic theory of magic, which harnesses and manipulates fundamental particles.

In this world, wizards, who are essentially scientific spell casters, find themselves locked in a relentless battle against the oppressive Church.

However, when Lynn arrives, a harbinger of an otherworldly Renaissance, the tides of change are set in motion, unveiling a thrilling tale of discovery, intrigue, and the struggle for enlightenment.

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 fiancée has betrayed, but how could she know that the man she looked down upon was in fact a prodigy with healing and martial prowess!