mahoraga (female)

this is JJK so basically your Megumi you try to summon her multiple times before you get hurt or get in trouble but it always fails one day you got in a fight with a grade 1 cursed spirit and you usually lost but you summoned her "with this treasure I summon" and she appears behind you (for the people who don't know she is a special grade shikigami or powerful shikigami)