 To stop Shingen, Mariko planned to kill her father and then commit seppuku in recompense, but Logan, learning the truth about this manipulation and inspired by a personal epiphany about humanity, attacked and slew her father in a fair battle of honor before she could act.In doing so, Logan was convinced that Mariko would be honorbound to kill him for that and was prepared to die at her hands rather than harm her in self-defense.However, Mariko explained her opinion of her father and presented the family katana to Logan as a token of her approval as an honorable warrior who is properly entitled to it.