Who Let Him Cultivate?! - Chapter 1 - Good Day for Trips, not for Cheats

My Shenhao system can only be upgraded after completing tasks.

With the Shenhao system in hand, you can go all the way to a radical life!

This is the rhapsody of a thirty-year-old man!

Book Friends Group: 1102095280

- Description from novelbuddy

Meet Sora and Shiro, a brother and sister who are loser shut-ins by normal standards. But these siblings don’t play by the rules of the “crappy game” that is average society. In the world of gaming, this genius pair reigns supreme, their invincible avatar so famous that it’s the stuff of urban legend. So when a young boy calling himself God summons the siblings to a fantastic alternate world where war is forbidden and all conflicts–even those involving national borders–are decided by the outcome of games, Sora and Shiro have pretty much hit the jackpot. But they soon learn that in this world, humanity, cornered and outnumbered by other species, survives within the confines of one city. Will Sora and Shiro, two failures at life, turn out to be the saviors of mankind? Let the games begin…

Tsunderes are refreshing at times but having to chase a wife is hell. Oppress the tsunderes!

In ancient times, oppressive scums were boring old stories. It was pure crap, only for entertainment, having neither escalated or was serious plot. Everyone just enjoyed reading it.

- Description from Novelupdates

The protagonist travels through Shu Mountain and becomes a demonic dragon guarding the heavenly book in Dinghu Peak.