The MC refusing to rely on slavery is SO DAMN GOOD! Seriously, lots of isekais out there the were MC use it without even a second though ... Ah, is good seeing one where he dont use it.
Well, the MC is a time traveler right at the beginning of the history, so I kinda saw that coming.😒
Still, the moment the first one died, I had hope the manga could have a dramatic learning because death has weight. But come the second, then the third and was getting obvious what the author was...