Kae has been taken away and Kawaki must face a dangerous assassin. Himawari acts as his partner and provides support during the battle. They try to corner the enemy with coordinated attacks, but the enemy proves to be powerful. Meanwhile, their classmates, who had entrusted Kawaki and Himawari to directly confront the assassin, take action in a desire to try to help. Will Kawaki be able to save his precious friends and accomplish his mission?

I won't let you get in my way at this point!
!لن أدعك تعترضين طريقي في هذه المرحلة
Niemand wird mir jetzt
in die Quere kommen!
No permitiré que se entrometan.
No permitiré que os entrometáis.
Non vi permetterò di ostacolarmi ora!
Não vou deixá-los me atrapalhar agora!
Я не позволю вам всё испортить!