D.E.M.O.N.S: Getting Summoned Weekly isn't so Bad - Chapter 1412 - Vacation Summary Part 3

He, without doubt hates her.
What did she do to deserve his hate?
The person who she treated well like a brother did not even bother to notice it...

Years passed…

He needs to get married.
He needed a wife.
So she offered herself.
It was a marriage that will benefit both parties he said.

After failing to transmigrate to a proper cultivation world, Lin Zhengran woke up to find himself as a little kid… in kindergarten.With no other choice, he decides to fool the system by pretending to cultivate.[Today, you encountered a fairy descending the mountain. You must find a way to obtain the Pure Yang Elixir in her hand.]Lin Zhengran looked at the milk candy in his childhood friend’s hand.“Give me the candy. Do you need to go to the restroom? I’ll call the teacher for you.”The little girl, confused and innocent, handed the candy to Lin Zhengran.“Here’s the candy…”[Congratulations! Without lifting a blade or striking a blow, you successfully obtained the Pure Yang Elixir from the fairy!]

The journey to the martial peak is a lonely, solitary and long one. In the face of adversity, you must survive and remain unyielding. Only then can you break through and continue on your journey to become the strongest. High Heaven Pavilion tests its disciples in the harshest ways to prepare them for this journey. One day the lowly sweeper Kai Yang managed to obtain a black book, setting him on the road to the peak of the martials world.

- Description from novelupdates

On the surface, he is the aloof and standoffish patriot whose sole purpose is to serve the nation. On the darker side, he is an invincible, powerful and mysterious man.