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?
If they find out you're alive, 
they might send people to find you.
قد يرسلون من يبحث عنك 
.إن عرفوا أنّك قيد الحياة
Erführen sie, dass du noch lebst,
würden sie wohl Leute schicken.
S’ils apprennent que tu es en vie,
ils te pourchasseront.
Se scoprissero che sei vivo,
potrebbero inviare qualcuno a cercarti.