Paladin of the Dead God - Chapter 247:

"Bowzer, we'll stop here for the night."

The Empress who dies in torture, An Rushuang is her name. After she wakes up, she finds herself has time-travelled to when she was twelve years old, but she would turn into Major General’s white horse at night. He is a general who orders about the winds and clouds on the battlefield, and she is a little girl lives in her boudoir seclusively.
She endeavors to change her fate, and he spared no effort to win every battle. They meet each other every day, well, it’s night to be accurate. Is that a dream or not? She pleads to marry the seignior to win peace for her family, only to find he is the one she is going to marry.
“Growing old with you under the same roof is my long-cherished wish”, thought them both.

- Description from Novelupdates

Coming out of the Ideal Human Project, Mizuhara Ayato was referred to as the 'perfect human'. However, life was not so simple for this unfortunate boy. Stuck between other genius students and a meritocratic high school, Mizuhara would find himself unable to live a calm life.

Who really is Mizuhara Ayato?

Apathetic, listless and uncaring, will anyone ever make Mizuhara feel something? Even in the harsh conditions of the Tachibana System, he shows no signs of struggle.

Is he the ultimate proof that nurture is stronger than nature?

***

Sara Fujiharu, the cutest girl in the school, is also known as the 'Seatmate Bully'. Every few weeks, the class seating changes and every time, Fujiharu-san gets a new target. What's her goal? To make the boy sitting next to her fall in love, and once she does, she destroys their heart, crushing their love.

Why does she do this? I still don't know.

It's March 23rd, the day of the seating change. So far, ten boys have fallen for her traps, her playful attitude, and her innocent face. Not a single boy so far has managed to brush off her attacks-and every single time; their weak hearts have been crushed.

Now it's my turn.

However, my heart is not so easily played with.

He died in his first life, as an ordinary human inside an ordinary planet.

In his second life, he swore to live a life of supreme power, and so he did. He reached the apex and exterminated his enemies to oblivion.

Dying, he was reincarnated in a world which could use Chakra. He became The Overlord Of Every Being, Ruler Of 6 Universe.

Unfortunately, he died. Using a mysterious method, he was reincarnated once again inside the world of Tales of Demons and Gods.