Suiyan
spoiler alert they wont fail the mission... common seriously if you gona give a mission give one that they can afore to lose. If you gave one that would end the novel if they fail then it pretty much mean they wont! so tension wouldn't even be there! there another fanfic does the same thing ... gave out mission that had fatal consequence ... we all know that it aren't gona happen!
for anyone who has read system stories before this was honestly expected, but definitely not wanted especially because with the harsh penalty there is no other outcome apart from succeeding. for example giving sis orb the power to reduce the penalty would be more interesting and leads to alot more possible outcomes. Sister orb needs the authority she deserves!