Talk:Naganami/@comment-28354066-20171227131931/@comment-28781449-20171227132835

It was a reward of E4 (Hard only) and a quest reward for E-2 related quest (optional rewards, all difficulties). So if you just cleared all M+ but went M on last map and didnt do the quest then you dont have any.

Try looking in the extra storage in your inventory though, if you do have it - it's there.