Rusty World: the Legacy of Faust

Ever since Faust invented the Infinity Box. People no longer choose to work in production day after day, but choose to use the infinite box to travel through various worlds for adventure. While the protagonist followed his father into the Infinity Box, there was an error in the coordinates. Be transported to a shabby world. It's like Europe in the 17th century, but this world is different. It has everything, griffins, witches, alchemists, and unheard-of rust-colored creatures. The identity of the protagonist is that he is the third son of a down-and-out nobleman. Here he inherited a surname - Faust! According to Faust's instructions, the protagonist can obtain a huge fortune as long as he survives to adulthood. Of course, Faust will not let the adventurers obtain this inheritance easily. The protagonist is trapped in a three-day loop, almost never reaching the timeline of adulthood. The only way to break the situation is to complete the task through the Eye of God and extend the timeline of the rust-colored world until the day he becomes an adult. And this world is far more complicated than he understands. There is a mechanism called Rust Level, which can intimidate others, even enslave them, and make others become the most loyal slaves with just one glance...