S1·E12 The Boundary Between Light and Dark

Matsuri has come to Aono's house and go into a conversation about who Yorito chooses to go with — Aono to a different place, or Matsuri, whom he has asked a favor from. The two Yaka begin a battle in the wrecked construction area while Yorito waits in an old theatre. Just when Matsuri is able to deliver the final blow to Yorito and Aono, the old camera in the theatre comes on and displays the sky. Matsuri has a flashback and from what Takeshi said, drives the sword into her own self, much to the dismay and horror of the siblings.