MTL - Dressed As the Villain’s Rich Second-generation Father, Showing Off the Dead Protagonist - Chapter 439 The villain and the protagonist are doomed enemies

Two heroes of the game Legend of Heroes 2 who were rotten waters*.

“Everyone deserves a happy ending, don’t they?”…In the brutal fantasy RPG Fall of Ares, saving the world came at a cruel price — the deaths of every heroine the player had grown to love. No matter how skilled you were, their sacrifices were inevitable. The game warned you not to get attached.But one young man did.After beating the game and lamenting their tragic fates, he wakes up in its world — reborn as an extra, armed with one mission from a mysterious system:[Change their endings. Let them live.]Now enrolled at Mysteria Academy alongside the heroines doomed to die, he must rewrite fate itself. For every girl he saves, he’s rewarded. But the world resists change. Calamities draw closer. The true enemy — the Children of the Sky — are watching.And one of the heroines… remembers it all.

In an alternate world, countless monsters crossed through rifts, sweeping across human cities and bringing an apocalyptic crisis upon humanity.From that moment, humanity entered an era where everyone transitioned into different professions. Nations took pride in cultivating strong professionals and competing for top ranks in strategies for the alternate world.When the first supreme ruler of the Dragon Kingdom, who had been dormant for millions of years, awakened with resources accumulated over that time, the bosses of the alternate world trembled.Top-tier professionals from countries around the globe bowed in submission...-------My new book: “Full-Star Player Returns as a Godslayer”

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