Setting: 21xx, 22nd century. Archer walks through the dark corridors of the Government Prison, which houses the country's most dangerous criminals. Passing through the high-security doors with the badges that only high-ranking government officials have, Archer heads straight to the special cell where he was assigned to monitor the prisoner a week ago. Entering the room, he looked up at the dangerous criminal with a danger level warning of A++. A silver-haired teenager with fox eyes, wearing a white prison uniform. Who would have thought that this was the gentle, lovable childhood friend that Archer once knew?