Tearju wird die neue Lehrerin von Momo, Nana und Mea. Enttäuscht stellt sie fest, dass der Sitzplatz von Yami leer bleibt. Die Freunde von Yami geben alles, um die Wissenschaftlerin und ihr ehemaliges Experiment wieder zusammenzubringen.
Thanks to Lala's massage tool, Honekawa feels better and resumes his teaching duties. Tearju is reassigned to teach the class that Momo, Nana, and Mea are enrolled in. As she begins class, she feels depressed as she sees the empty desk. During break, Momo confirms to Rito that Tearju is her new teacher. Momo wants to reunite Yami with her and tried to invite Yami back to class; Yami denied it. Rito chooses to talk to Yami himself. As he looks for Yami, Mea finds him. Mea is interested in his bathing experience with Nemesis and uses her Psycho Dive to recreate it. When Rito mentions Yami, Mea reads Rito's recent thoughts and backs away, feeling anger with Tearju. Rito tells Mea to reconcile with Tearju but Mea leaves. As for Yami, she invites Mikan to the library with her. At the library, Mikan is impressed with the breadth of Yami's reading and tells Yami about her past from Tearju. Mikan also invites Yami back to school but memories of Nemesis float into Yami's mind, making her feel uneasy. The next day, Rito finds Yami in the library and asks Yami to return back to school. He also mentions Tearju's thoughts of them being a family but Yami refuses to accept because of her identity as a weapon. Yami also tells Rito to stay away from her family business but is confronted by Mea, a member of her family. Mea relates Yami's thought to how she always followed orders from Nemesis. After the fight with Nana, Mea learns that she can follow her own path. Per Rito, she tells Yami to reconcile with Tearju. Although the meeting is interrupted by a dog interfering with the eavesdroppers Oshizu and Momo, Yami accepts Mea's words and shows up in Tearju's class the next day in her school uniform. She thanks Mea as she takes her seat.
Tearju est désormais le professeur principal de la seconde B, la classe des jumelles Deviluke, de Mea et d’Ombre. Cette dernière ne vient plus en cours depuis que Tearju a intégré le lycée et ne compte toujours pas revenir en classe. Rito décide alors d’aller lui parler après les cours afin qu’elle revienne sur sa décision et qu’elle se réconcilie avec la scientifique.
ティアーユがヤミのクラス・１年Ｂ組の担当教諭に就任。ティアーユとヤミのぎこちない関係に加え、ティアーユに反発する芽亜もいることで、リトたちは気が気でならない。リトはヤミとティアーユの仲を修復するため奔走するが、ヤミの態度は頑なで、リトの言葉はなかなか届かない。そんな中、リトの想いに触発された芽亜がヤミと対峙する。予期せぬ妹・芽亜の言葉に刺激され、ヤミはある決意をするのであった…！
모모가 있는 반에 담임으로 오게 된 티아. 그리고 그날부터 어둠은 수업에 들어오지 않게 되는데...
Gracias a la herramienta de masaje de Lala, Honekawa se siente mejor y reanuda sus tareas docentes. Tearju es reasignada para enseñar la clase en la que están inscritas Momo, Nana y Mea. Cuando comienza la clase, se siente deprimida al ver el escritorio vacío. Durante el descanso, Momo le confirma a Rito que Tearju es su nueva maestra. Momo quiere reunir a Yami con ella y trató de invitar a Yami a volver a clase; Yami lo negó. Rito elige hablar con Yami él mismo. Mientras busca a Yami, Mea lo encuentra. Mea está interesada en su experiencia de baño con Nemesis y usa su Psycho Dive para recrearla. Cuando Rito menciona a Yami, Mea lee los pensamientos recientes de Rito y retrocede, sintiéndose enojada con Tearju.
