The Kyoju Incident—a serial murder case where 23 killers fell victim to none other than active-duty police officer Kazuki Kyoju. Though Kyoju was executed for his crimes, he wakes up to find himself alive once more, only to be informed by a mysterious girl named Ressy that he’s now a participant in a battle royale of resurrected heinous murderers. Determined to stop the atrocities of these revived criminals and wipe out killers from society, Kyoju throws himself into this twisted game. An ex-police officer takes on ruthless criminals in a deadly survival game! A dark and thrilling series!

(Source: cmoa, translated)