Raizel, protector of the nobles, along with his loyal butler Frankenstein and former Union experiment M-21, continue to spend their days at Ye Ran High School while keeping their true identities secret. They were living their lives as normal until one day, when a violent gang barges onto the school grounds. M-21 is forced to make a choice in order to protect the students. Meanwhile, DA-5, a mysterious special forces team, is dispatched to Japan on an investigative mission. What will become of the trio's peaceful new life?
We were only acknowledged 
in life by others like us.
.اعتُرف بنا أحياء فقط ممّن يشبهوننا
Nur unter unseresgleichen
sahen wir uns als Personen.
Solo nos reconocían otros como nosotros.
Solo nos reconocían otros como nosotros.
Nous ne pouvons compter
que les uns sur les autres.
Eravamo gli unici a ritenere 
che fossimo degni di esistere.
Nossa vida era reconhecida
apenas entre nós.
Никто не считал нас живыми существами,