Quick Fix for Brave Men

What, traveling to another world but not having such a system? Don't have such a divine pet? Don't you have such a cute girl? But to save such a world! ? : "If something goes wrong in such a dangerous situation..." : "Probably die." : "Ah? Then, what should I do if I die?" : "Dead... Just dead." : "..." What does death mean? I just went to college and I want to go home! ! ! Okay—— This is a story about the growth of a brave man who is destined to be extraordinary. Start from scratch and become a brave man who saves the world. This is their story from another world. Please give me your advice!