Possesses a Special Buff (cannot be removed) that grant her extremely high damage resistance. Normal attack will do very minimum damage.
There are certain ways to inflict damage on her. Below are good examples of Servants or Craft Essences that can help Masters against Osakabehime
|Assassin Monument x1 Pt 3|
Osakabehime Skill Upgrade: Morph A+ to Four Gods Divination (Hakuro) A