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?
I made a promise to a comrade 
that I need to fulfill.
.قطعتُ وعدًا على رفيق وأحتاج الوفاء به
Ich habe einem Freund ein Versprechen
gegeben, das ich einlösen muss.
Le prometí a un compañero
algo que debo cumplir.
Le prometí a un compañero
algo que debo cumplir.
Je dois réaliser
Ho fatto una promessa
Preciso cumprir uma promessa
que fiz com um companheiro.
Я должен исполнить