Ruth say him that who he was to reaper and reaper reply that he was he's older brother but Ruth don't remember of him. Reaper told him about there past they are born as commoner there mother was a housewife and there father was a farmer. But one day there was a noble man who measure the potential of every person in there village they thought that there was a chance one of them possess a potential to rival them so they conducted a measuring they ensure that all the villager was participated. and if they not participate to the measuring they instantly executed. So all of them conducted in one of the villager there family one of the member have a potential to become an arcmage it was Ruth that's reaper saying to Ruth. But Ruth don't remember her past in activated the spell that he cast a big explosion was occured in the area but unexpectedly they was teleported by reaper to he's domain mark and joker was safe they thought that they die of that explosion. And mark say thank you to reaper and reaper told to mark that he found her youngest sister name Ruth.