MTL - Befriending The Most Powerful Person - ~ Works related

Xia Yan passed through to the world of Bleach and became an eleven-year-old boy. He was rescued by Renji and Rukia in the Seireitei, and he was studying at Shin’ō Academy, and he was a student of the same class.
He is a top student of the Shin’ō Academy, and he is vying for strength by various teams. In the end, he has entered the first team of secret mobile maneuvers.
He will use punishment to kill every person who tries to threaten the martyrdom and protect his loved one.

- Description from Novelupdates

Hey, let’s have a crush together.

The nervous student Xu Jingjing has a crush on the school grass Gao Zhan, and the academic tyrant Kang Jiawei nicknamed “Instant Noodles” has a crush on the goddess Xu Jingjing.

In order to get close to her favorite male god, Xu Jingjing separated Gao Zhan and Xu Jingjing, and formed a “secret love front alliance” with Kang Jiawei – she urged him to lose weight and inspired him to pursue Xu Jingjing;

And Kang Jiawei helped her review her homework, which made her grades improve by leaps and bounds. The relationship between the two has undergone subtle changes in the process of helping each other, which seems to go beyond friendship…

Until the death of Kang’s father, Kang Jiawei left without saying goodbye to the United States, and this hazy relationship ended without a trace.

At the class reunion eight years later, “Instant Noodles” counterattacked gorgeously and turned into a tall, rich and handsome real estate developer. He decided to make up for the regrets eight years ago and made a belated confession——

Kang Jiawei: “I like you, Jingjing. Be my girlfriend.”

Xu Jingjing: “Why do you think that I will be your girlfriend in eight years? What if I have a boyfriend?”

Kang Jiawei: “It doesn’t matter, if you have a boyfriend, I will find a way to make him an ex.

- Description from Novelupdates

Chu Jiao had always suffered from the quick changing nature of human relationships since little and had never tasted the feeling of being doted on. She was suddenly informed that her existence was only a few strokes of a pen in a novel. All her suffering was set by the author in order to make the male and female leads succeed.

She wasn’t willing nor could she accept the truth.

For vengeance, she bound herself to the “Supporting Female Carnal Desire System”. In order to survive and go back to the original world, she needed to kick down the female lead and take on the mission of catching the male lead and to clear the conditions, she needed——bo-body fluids?

Originally, she only planned to use her body without the intention of losing her heart but she never imagined that she would over and over again meet people that would carefully place her in the palm of their hand and spoiled her dearly.

They paid her with sincerity so she might as well return it with deep feelings.

Ultimately, she discovered that everything was actually love.

As the stars move and the time turns, you’ll like me no matter what I look like.

He crossed over to a new world where humans have magical power. They are called warriors. They use their power to kill the monsters that appear out of nowhere. Dragons, Dungeons, and Magic users are pretty common in this world. If you want to live in peace, you need to have that power. You can also become a powerful clearing dungeon.

In this dangerous world, he has a system that can help him grow stronger. But he didn't want to be a high-profile warrior who attracts much powerhouse attention or become a lab rat. He wants to be Low-profile and grow strong using his system.