Adamoforder
assuming the average walking speed of the group is 3 mph (5 kph) then on order for them to get their in a day, the distance would be around 72 miles or 120 km. mc's speed is only Mach 1, which is 340 m/s, or 0.34 km/s. divide 120 by 0.34, and you get about 353 seconds, or 6 minutes. so no, he would not cross that distance in a few seconds while running, and I hate when Mc is made unrealistically overpowered when his stats say otherwise.
So far it's good hopefully there are some women eventually I didn't see it in the tags and don't really like the lone protagonist type novels gotta at least be one girl around for it to be realistic to me. You know men like women a lot especially men who get power and have experienced life and death like war. It's something that calms the soul