Her Kindergarten is Full of Villainous Students - Chapter 9: The First Parent Is a Dream.

“In order to survive the future great war, we must take drastic measures. We need to summon warriors and train them before time runs out.”Thus, millions of earthlings were reincarnated in an alien, medieval world governed by swords and magic to save its prophesied doom.Among those individuals, one's situation inexplicably deviated from the others.Thrust into a rotting house in a ghostly body, Adam found himself bound to a wailing baby. With a heavily damaged soul and the snarky remarks of a system, he began his years-long quest to recover his body.Armed with his mind, he'll educate the baby and slowly watch him turn into a good youth. However, he would have to make a choice: suffer as a ghost until he finds an alternative that might not exist, or possess his body and reincarnate.He was far from imagining how dangerous this world full of possibilities could be, prompting him to question everything he knew... Including himself and this world's intentionally blurred history.

This book is also called “The Unscientific Ninja Master of Sand Ninja Village”.

“Gara, come on!” “When oil is dug, Sand Ninja Village will explode.” Gaara was puzzled. He was outraged. ”

Teacher Mu Feng, shouldn’t hard work mean hard work in cultivation? You always ask me to dig sand and find oil for cultivation. ”

“Scientifically speaking, digging sand is a very good exercise.”

“Just dig hard. If oil is dug, everyone in Sand Ninja Village will have a white cloth on their head. I will be the richest in the world.”

- Description from novelbuddy

I saved the Warrior who used to ignore and bully me and now she is obsessed with me.

“The sky was as clear as a wash, the sun radiated over the mountains and forests, and the entire world appeared tranquil, carrying a unique sense of stillness.Watching a person wearing a sexy tiger-print miniskirt, holding a stick, leading a group of more than ten people shouting as they chased after the leader of a fur-covered rhinoceros, Han Cheng couldn’t help but bring his slightly curled right hand to his slightly open mouth and once again exclaimed, ‘Oh my goodness!’(No system, no space, no cheating through crossing over, purely original primitive farming, without elements like cultivating immortality, for readers who enjoy a relaxed farming story, please read at ease.)”