This is everything mediocre about isekai the manhwa. The ridiculous game-like setting, the boring and generic MC, the uninteresting and poorly formed and paced plot, etc. This is just like and as mediocre as Kenja no Mago, with an added ReZero gone wrong twist.
SO WHAT HAPPENED TO THAT MOTHERF*CKING INVENTORY FLOATING & NOT GIVING A F*CK ?!
Had expected him to at least try putting a corpse inside to see if that works after he managed to put a sword in, even when he cannot move it from the place it's not like he ever met someone who could see his menupanels or the stats when he appraises someone else....
Guess at the end of the day he is just a skeleton and his thoughts often seem to not be that complex but oh well what do i expect from a literal "no brain - MC".
Also thought he might try to kill himself once he was done there to meet the Necromanceress again since he should know by now that he always kept his stats from before death but maybe he is still stuck up on that thought of "what if this is my last life?" even when it is his 8th life already.