Tập 23: Kuro và Akane suy ngẫm về các hợp đồng trong quá khứ trong khi Keita gửi thông điệp cuối cùng trước khi qua đời.

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In a series of flashbacks, Kuro looks back at her journey from living with her family, meeting and forming a Contract with Keita, to returning to the Pure Place; Akane looks back from her time of residing with Keita to forming a Contract with Reishin and the destruction of the Masagami. Back in the present, after the ending of the Doppeliner System, Akane and Keita get married. Several decades later, Kuro receives a telepathic message from a very old and dying Keita. He tells her that he will take the curse with him, thanking her for giving him a happy life. Keita dies as the still young Kuro gratefully thanks her Contractee for everything he has done. (Source: Wikipedia)