The first vegetable farmer in the universe

It has been ten years since Su Xiaocai traveled from the more high-tech interstellar world.
That world was invaded by foreign races and wars were ongoing. As a frontline soldier, I seldom saw green plants.
This cultivated Su Xiaocai's hobby of growing vegetables and trees.
She vowed to be the best farmer and stay away from the battlefield.
Classmate: Who is driving this mecha dancing in the field?
The teacher who heard the rumor came over and said: Not bad, he is a good seedling.
The principal waved his hand and decided to transfer her to the Mecha Department.