In a dream, the male protagonist, Zhou Yuansheng, is taken as a disciple by an ancestor roaming the universe, and automatically becomes the partner of the ancestor's previous female disciple.
His senior sister helps him obtain the golden finger that unlocks his brain, the Tortoise Spirit Divination, by thwarting the schemes of the evil organization Chaos Touch.
From then on, the protagonist and his senior sister brave the world together, learning fortune-telling and developing new technology as they change the world.
He also learns to navigate social relationships and raise his emotional intelligence at work.
[No System] [No harem] [I Ching] [Not instant gratification] [Subtle thrills] [Social savvy] [Light educational content]
Read at your own discretion.
It gets going in Chapter 5 and takes off in Chapter 16.
It's pretty good to watch, humorous, and the part describing the Endless Land in the middle is very good, hahahaha, it's quite hilarious anyway.