Peak Crazy Owl

Devil's Valley, the world's most heavily guarded prison, houses the world's most terrifying criminals. Some people have massacred tens of thousands of people, some have single-handedly instigated a war between the two countries with tens of millions of casualties, and some have controlled a trillion-dollar capital scam that led to the bankruptcy of the country... But since the arrival of the 'ye' who lives in Prison No. 0. In the entire Devil Valley, he is the order! Three years later, he was released from prison...