this is pretty crap TBH
typical subservient doormat MC
always fixes whatever is thrown at him
acts politely and amicably to multiple people who demand his services, while they act like they own the place and threaten him with severe violence or death. MC doesn't even tell them to tone it down as they intrude on him and belittle him
every chapter repeats the same "I'll do whatever I can to restore the memories in [item]" line
this is a tiresome limp manga