The Undying Immortal System - Chapter 245: Life 73, Age 40, Martial Grandmaster Peak

She was the most arrogant assassin in the world in the twenty-first century, yet in the end, she was unintentionally killed by her senior brother, resulting in her traveling to Bingzhou continent. The first step after she opened her eyes was to crawl out of the fecal drain and throw the woman who schemed her into the fecal drain. However, at this critical moment, she met a cold and arrogant beautiful man. Looking at his disdainful expression … She would always remember the words of this proud and aloof man. “Once my beloved wife has my child, I will seize Ming You Nation’s land for you and our son!”

- Description from Novelupdates

Before going to college, an ordinary high school student went to celebrate and got drunk. When he woke up, he found himself in a completely different world. There was a big sect, the approaching sect entrance examination, a slum where his body’s previous owner lived, and a shared memory about a missing young girl.

When he got tangled in a fight with a few punks in this different world, he fell off a cliff and miraculously found himself still alive, with two more voices ringing inside his head. They were Sword Master and Saber Master. In the company of them, he continued to find out more about this whole new world. He took the sect entrance examination, entered the sect, met a strange man in black, and even participated in a major competition of the sect to have a chance to win over his peers!
In this whole new world, he was born again and got to explore the fantastic martial world!

- Description from Novelupdates

When a person dies, they either die light as a feather (aka unimportant) or heavy as Mt. Tai (aka very important).

On the will left behind by the 14 year old suicide victim K:

“Taku Sugawara is the devil. Nobody should believe his words.”