Yahiro taucht plötzlich mit Jun auf, der sich in Phase V der Krankheit befindet. Shu muss in Gais Abwesenheit eine Entscheidung für die Gruppe treffen und bemerkt fast zu spät, dass der Virus anders arbeitet als erwartet.
Hare and Kanon notices how much Shu has changed and is more active. In order to help Hare get close with him, Kanon lies to Shu that Hare needs his help for her shopping. As Hare is about to confess to Shu on the train, Yahiro suddenly appears which Shu tell Hare to go shopping herself as he wants to talk with Yahiro. Yahiro brings Shu to his hideout where his brother, Jun is also staying and reveals that he and his brother have been on the run from the GHQ because they wanted to euthanize Jun. While Shu won't forgive Yahiro for betraying him, he will help Jun escape for Yahiro's sake and calls the Undertakers to pick them up. However, the GHQ have been following them and sends Seiga and Daryl. Cornered in a warehouse, Shu forcibly takes Yahiro's Void before telling Yahiro he will never betray his friends just like him. Daryl's Endlave arrives and fight Shu using a new weapon that targets his Void while Seiga watches. But when Jun stands up, the weapon target him instead. Suddenly, the crystals on Jun's body migrate to Daryl's Endlave and takes control of it and proceeds to attack the GHQ and Yahiro. Shu stabs the infected Endlave with Yahiro's Void and enters Jun memories where Jun himself shows Shu his and Yahiro's past before the "Lost Christmas" incident. Jun also reveals because of the crystals on his body, he could see people's true self including his brother, who while loves and cares about him, also hates him for burdening him as well. Wishing for his final memories of loving Yahiro and not hating him, Jun begs Shu to use Yahiro's Void to end his life before he kills Yahiro which Shu is forced to do so which Jun thanks him. With Jun's death, the infected Endlave breaks down while Seiga leaves. As Yahiro regains conscious and asks where Jun is, a mortified Shu confess to Yahiro that he killed him, unaware that both of them were followed by Hare.
Shuu retrouve par hasard Yahiro. Celui-ci est en cavale depuis le jour où Shuu a fait évader Kenji Kidou du centre de quarantaine. Les Anticorps en ont après son frère et il demande de l'aide à celui qu'il a trahi auparavant. Shuu accepte de l'aider mais les choses se compliquent quand le commandant Segai et Daryl retrouvent leur trace.
葬儀社のミッションをヴォイドの力で乗り越え、自信と余裕を持ち始めたシュウは、偶然にもヤヒロと再会する。
アンチボディズから命を狙われた弟・ジュンを守るために、逃亡中だというヤヒロ。
シュウは彼らを保護してもらうために、葬儀社に合流しようとする。
葬儀社の力を借りられない状況の中、開始されるセガイ少佐による攻撃。
慢心にも似た自信を持って、たった一人で立ち向かおうとするシュウ。
――だが、ヴォイドによって顕わにされるヒトの心の深淵は、そんな気持ちを嘲笑うかのように、暗き淵へとシュウを誘（いざな）い――。
슈는 모노레일에서 안부가 걱정되지만 보고 싶지 않았던 야히로를 마주친다.
야히로는 처분될 위기에 처한 동생, 쥰을 데리고 도피생활을 하고 있었는데...
슈는 쥰을 구하기 위해 협력하기로 한다. 야히로가 아니라 쥰을 위해서...
Yahiro aparece de repente con Jun, que se encuentra en la fase V de la enfermedad. Shu tiene que tomar una decisión para el grupo en ausencia de Gai y se da cuenta demasiado tarde de que el virus funciona de manera diferente a lo esperado.
暫時不用執行葬儀社任務的集，在電車上與谷尋巧遇，並得知他正帶著被追殺的弟弟‧潤過著逃亡的生活。就在此時，追殺谷尋與潤的「抗體」再度將兩人逼到絕境。集用「王之能力」拯救了兩人，但聽完潤訴說他對哥哥的感情後，集才領悟到谷尋體內虛空的真正意義。而集也被自己的大意與自信拖向深淵……
Guadagnando fiducia dopo la missione dei Funeral Parlor, Shu si ritrova con Yahiro che è in fuga con il fratello Jun e affronta da solo l'attacco di Segai.
Po udanej misji Domu Pogrzebowego Shu nabiera pewności siebie. Znowu spotyka zbiegów — braci Yahira i Juna. Musi też sam odeprzeć atak Segaiego.
