This dark medical drama examines the meaning of human life, centring on a team of unidentified black-market doctors who undertake any kind of surgery with superhuman surgical skills and exorbitant medical expenses. Hazama Eisuke, also known as "Ace", is a genius surgeon who works as a patissier during the day. He has an operating room equipped with the latest equipment in the basement of his patisserie, where he performs surgeries on patients who have been abandoned by others. Shimoyamada Jo, also known as "Joker", is a brilliant international lawyer and a negotiator with patients.