Not being able to be properly guided, so his physical state is shit as far as I have understood :)
Could be wrong (all guesses), but he either killed a guide he deeply cared about and feels terrible [unlikely] or killed a guide and he feels terrible about killing an innocent person [more likely]
ALSO in the ss dungeon he's BFF (the ss rank dude) is trapped there orrrrr he IS the ss rank dude and there's someone else there he's looking for (guide maybe??? Possibly a body) BONUS: MC & ML are star-cross lovers and met in the ss dungeon but didn't realize it AND 2% chance ML is actually looking for the MC in the ss dungeon (or the guy the MC saw die)
Ok but an anyone share how the ML actually suffers im so curious