Ayumi liegt mit einer Erkältung krank daheim im Bett. Zur Aufmunterung besuchen ihr Bruder Yu und seine Freunde sie. Ayumi freut sich besonders über den Besuch von Yusa.
While Ayumi stays at home to recover from her fever, Yuu and the others learn that a student with a "collapse" ability is in the condo. As a result, Nao suspects Ayumi of being the ability user, believing she might be developing an ability of her own. As Yuu, Nao, and Yusa check up on her, Ayumi describes a dream she had about the ground suddenly cracking, prompting Nao to suggest that everyone be cautious around her. The next day, as Ayumi's temperature goes down, Yuu advises her to stay at home so she can be safe, but she decides to sneak out and go to school anyway. There, she is confronted by her classmate, Konishi, who accuses her of stealing the boy she liked away from her, then comes at her with a cutter. Pushed into a corner, Ayumi suddenly activates her ability, causing the school building to collapse with her still inside. As Yuu desperately searches through the wreckage for any signs of Ayumi, a piece of rubble falls towards him. Afterwards, Kumagami is shown standing over the wreckage.
Selon Kumagami, un étudiant doté d'un pouvoir de destruction serait dans le même bâtiment que Yu, où Ayumi se trouve, cloué au lit par un rhume.
Kumagami indica la presenza di qualcuno con superpoteri nel condominio di Yu, proprio quando Ayumi, a causa di un raffreddore, non è potuta andare a scuola.
熊耳が伝える新たな能力者の居場所は、歩未が風邪で休む自宅のマンションだった。
お見舞いの為、乙坂家にやってきた友利と有宇に歩未は怖い夢を見たと話す。
夢の内容が、歩未の能力を知る手掛かりになると考えた友利は有宇に歩未から夢の内容を聞き出すよう伝えるが・・・。
아유미가 감기로 학교를 쉬게 된 날, 또다른 능력자의 존재가 예언된다. 그 능력은 붕괴, 장소로는 호시노우미 학교 전용 멘션이 지목된다.
El Consejo debe investigar a una persona con el peligroso poder del “derrumbe”. Sin embargo, se sospecha que ese nuevo sujeto es ni más ni menos que Ayumi, la hermana menor de Yuu, por lo que los chicos deben averiguar si realmente despertó su habilidad.
熊耳所传达的新的能力者所在地是，步未因感冒而休息的自家公寓。为了去探望步未，友利和有宇来到乙坂家，步未告诉他们自己做了可怕的梦。友利认为梦的内容会成为了解步未能力的线索，并让有宇去问步未梦的内容，但……
