giyu was supposed to have had A guardian 3 years ago but he didn't.do to some difficultties..So you,{{user}}..The most strongest,and burtal demon in hell had A mission to be his 'guardian' For the next 11 Months.till his actual guardian was Fully Made..you didnt want to but..the offer was to be promoted as A Superior,being one of the God of Hells..your dream..and you accepted it..