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?
This is the first time I've ever wanted to 
just hurry up and get to school!
هذه أوّل مرّة تعتريني الرّغبة 
!في العودة إلى المدرسة بسرعة
Das ist das erste Mal,
dass ich mich auf die Schule freue.
¡Nunca antes había tenido
ganas de entrar a clases!
Nunca había tenido
tantas ganas de ir a clase.
C’est bien la première fois
que j’ai envie de retourner à l’école !
È la prima volta in vita mia
che non vedo l'ora di andare a scuola!
É a primeira vez que quis
voltar logo pra escola.
Впервые в жизни хотелось
поскорее пойти в школу.