MTL - Deep Sea Survival: Start a Submarine (Deep Ocean Survival: A Submarine From The Start) - Chapter 1 Dive into the abyss

Sui Yan was a villain, at least that’s what everyone thought.

Her childhood friend and brother said: “Sui Yan, you’ve changed and become more and more disgusting.”

Her best friend said: “Sui Yan, stay away from me. I don’t want to see you again.”

Her stepsister said: “Sui Yan, I hate you.”

Her two biological brothers said: “Sui Yan, we don’t have a sister like you.”

The one she loved the most said: “Sui Yan, I could never like someone like you.”

Sui Yan died. Even though it should have made everyone happy, it made them so heartbroken they could barely breathe.

In the blink of an eye, everyone mysteriously returned to the year Sui Yan was four years old. From then on…

Li Xu occasionally got a sign-in system, and his life has been different from now on. Enjoy life, look at the scenery, sign in, spring flowers bloom, and face the sea.

- Description from novelbuddy

Nijigen is a freshman and Banri’s friend. He gains his nickname at the tea ceremony club’s welcoming party after declaring his despair of the three-dimensional world and that he would live for the two-dimensional world from then on. His nickname in high school was “Satoutaka”.