^The strength to burrow/break through/excavate several dozen tons of earth from absolute fodder.
Strength Tanjirou matches well into the start of the series, as this is the starter villain as a full Demon Slayer
^All that force is leveraged into the surface area of a sword, which is also initially incapable of slicing through shit as razor thin as spider's silk. He later peaks by slicing through a ridiculously higher number of them.
Like, already, its ridiculous talking about 10 megajoule tank rounds when comparable or lesser surface area with greater force does fuck all.
I didn't need to pull out anything meaningful to exceed that and Demon Slayer's not exactly a juggernaut in terms of feats either.
but CT
THE BOULDER
TANJIROU CUTS A BOULDER!!!!!