I, Who Owns the System, Am Not the Destined Protagonist

Traveling through another world, I thought I could live the life of a destiny protagonist who would drop gold coins while sleeping, pick up resources while walking, and make a U-turn to meet masters, but I found out that I was just a supporting role. In this world where monsters are rampant, Song Lin said "It's a bit dangerous, the system charges money!" "Host, the balance in your card is zero." Song Lin:......