Akane tries to get to know her quiet classmate, Rei Kuroki, unaware that she is the one assisting the Alone. As Akane decides to follow Rei after school, she sees her save a child from a falling piece of construction. As Rei returns home, she is visited by a crow, who punishes her for saving the child via a mark on her neck, reminding her of her mission. That night, Rei goes on a mission to destroy the Manifestation Engine by herself, but is forced to abort when she is discovered by security robots. The next morning, Akane finds her washed up on the shore and takes her back to her place to help her recover. As Rei panics when she realises she has dropped a key precious to her, Akane is called into action as an Alone appears. Meanwhile Rei, who was promised by the crow that she would able restore the world she came from and bring back her parents if she assisted the Alone, prepares to fire another arrow, but falls unconscious before she can. Returned to Akane's place again, Rei feels relieved when she is reunited with her key, which Akane and her friends helped search for, although she declines Akane's offer of being friends. Afterwards, Akane goes to the hospital to visit her mother, Mashiro, who assures her that Rei will open up to her someday.
あかねは新聞配達の最中に堤防で鳥と戯れる少女・クラスメイトの黒騎れいを見掛ける。
彼女に声をかけるのだが、愛想無く去っていってしまう。
学校で再会しても、朝のことについては何も知らないと言われてしまい、その頃、示現エンジン管理局で戦闘データを解析していた健次郎と紫条は、アローンが第三者によって操られている可能性に気づく。
아카네는 신문 배달 중에 새들과 놀고 있는 클래스 메이트, 쿠로키 레이를 발견한다.
그리고 반가운 마음에 인사를 하지만 레이는 말도 없이 떠나버리는데.
학교에서도 항상 혼자 다니는 레이를 보고 아카네는 같은 조에 들어오지 않겠냐며 제안한다.
Akane intenta conocer a su tranquila compañera de clase, Rei Kuroki, sin saber que ella es la que ayuda a Alone. Cuando Akane decide seguir a Rei después de la escuela, la ve salvar a un niño de una pieza de construcción que se cae.
Аканэ замечает свою одноклассницу Куросуки Рэй, играющую с птицами на дамбе во время доставки газет. Она пытается заговорить с ней, но Рэй холодно уходит. Когда они вновь встречаются в школе, Рэй утверждает, что ничего не помнит о том утре. В это время Кэндзиро и Сидзё, анализируя боевые данные в Управлении управления Сигэн-двигателями, начинают подозревать, что Арон управляется третьей стороной.
