A story about a boy from Mars who ends up at the "Asticassia School of Technology" is just there for "fun" but gets caught up in all the drama and now has to rely on his good old friend, Gundam Barbatos Lupus

When the sky split open and demons poured out yet again, something more came out of the fracture... He massacred the amassing horde... Those who stood in his way were ripped and torn... Those who tasted his wrath named him... the doom slayer.