A Hentai System in the World of Danmachi - Chapter 45 - 44 - Tiona Hiryute

This novel is about the young master of the Du clan, Du Shaofu, who was born with crippled veins and is unable to cultivate martial arts . After finding out about his situation from the clan while returning home he got hit by a lightning and a mysterious ‘first scripture’ appears and after studying for ten years he was able to mend his crippled veins together and starts his journey to glory.

There are five skills in Taoism: That is, spiritual practice, medical skills, numerology, anthroposcopy , and divination.

As a Taoist doctor, Zhou Jinyuan can tell fortune and save lives.

However, when a doctor can draw talismans and do alchemy, at the same time he is a very young… He has to prove himself is not a liar!

…

Zhou Jinyuan: Seeing a doctor? Wait for me to finish this talisman.

Patient (panic face): ? ? I’m sorry that I disturbed you.

- Description from Novelupdates

“Congratulations, you're now a Handler. You'll serve the state with utmost loyalty and pledge your life to its causes.”That was what Trent heard just before being handed an envelope—and a whole lot of disrespect.Mocked for his poor combat performance and labeled pathetic by his superiors, Trent finishes Handler training humiliated and underestimated. But they made one mistake: they judged him by his strength, not his mind.What Trent lacks in brute force, he makes up for with a rare genius in finance.So when a mysterious voice speaks to him in the bathroom—“Hello, Host. This is Ave-511e69.”His world flips upside down.Now equipped with Ave, a mysterious financial system that seems to know everything, Trent is about to rise through the ranks in a way no Handler ever has.Through stock markets, black-market missions, and calculated chaos, he will prove that money is the greatest weapon of all.They looked down on him. Now, they’ll look up in fear.

After the Catastrophe, every rule in the world was rewritten.