How the Zergs were Made - Chapter 864 - 865 Insects on the Wall

All Ewan Giacometti wants from his wife is a son. But after three years of unhappiness and disillusionment, Athena Moore is ready to leave her ice cold husband. When she finally asks for a divorce, Ewan’s cunny ‘best friend’ frames her, driving her out of the city. Now, Ewan is left to confront his true feelings about his wife, whom he had married under mysterious circumstances, especially when she returns from exile a changed woman.

A modern-day antihero, who was infamous for his devious acts, dies in an explosion meant to take down a powerful criminal syndicate. Waking up in a world of sword and sorcery, he finds himself possessing a fragile, powerless body with a strange “System” that seems broken. Initially thinking he's doomed, he learns that by pretending to be weak, he can manipulate others into revealing their secrets, granting him abilities they possess. As he rises in power, he discovers that the System was intentionally sabotaged—by none other than his own future self.

Due to all sorts of accidental mishaps, Qin Qi, together with the game system, is transferred into a strange world. In this world, everyone condenses Martial Soul, while Qin Qi’s Martial Soul was ten BOSS in the game! In the world, when others cultivate arduously, Qin Qi just needs to kill mobs and gain experience! In the world, there is only one alchemist among thousands of people, while Qin Qi can choose all skills, including Blacksmith skills, Spiritual skills, Matrix skills, Chef… Alas, it’s so annoying, so learn all of them. In the world, when people choose to be his enemies, their destinies have been settled!

- Description from Unknown

What would you say is the most valuable thing in this world?