Re:Zero Kara Hajimeru Isekai Seikatsu - Chapter 108Arc 7, - “Forthcoming Great Disaster”

99 is one, and nine refinements are returned to Xian.

A young town boy, stepping on Xiuxian Road, is not a family, no gold fingers, with his own determination and wisdom, the nine major cultivation system, the nine realms step by step to the peak, and finally ninety-nine one, the achievement of true immortal.

- Description from Uukanshu translation

Shao Ci was bound to the ‘Befriending the Most Powerful Person’ system. After crossing through, only then did he discovered that as long as a more powerful person emerge, this unscrupulous system will immediately change the ‘capture’ target….

- Description from Novelupdates

This is the first part, the second part is “Playing Fish Trapped in a Secret Room (密室困游鱼 Mi Shi Kun You Yu)”.

In 2007, at the WCG Asian Tournament in Singapore. In just a few hours time, between left and right hands, there goes a life and death battle. In the Chinese team that year, there is a professional player who’s only 15 years old, nicknamed “God’s Left Hand”. At that match, he sits right next to her.

Their professional lives start from 14 years old until they retire, disappear, at 25 years old.

In these non-mainstream tournaments, where a small niche of the population follows closely, their only possessions are a mouse, keyboard, and headphone each. There they won gold medals one after another for China.

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy