A genius armor master, teaching students while concealing his identity.

During the Great Cataclysm, the Mech Master is one who imbues mechs with sacred souls and summons mechs to possess their armor.

"Qin Shouyi, you are the one who slaughtered three million people in Huzhou City!"

"I did it."

"Do you know your crime?"

"I don't know."

...

"The Supreme Court of the Zhucheng Alliance has delivered its verdict."

Qin Shouyi, the former leader of the Knights of Dawn and titled Armor Master, murdered his father, massacred a city, and wiped out the entire clan of another.

With conclusive evidence, he is sentenced to life imprisonment and will be held in…criminal prison!

[The introduction is insufficient; please read the main text.]