Name: Koichi Ariake. High school senior. Age: 17(?). The eldest son. He works a live-in part-time job at a curry shop. He is the mastermind who plans the fraud schemes and writes the scripts. He possesses high intelligence, composure, and physical ability. He is exceptionally skilled at counterfeiting money. He rarely gets flustered. However, he feels a stronger need than anyone to protect his siblings, especially Shizuna, and cherishes them deeply. He speaks in a cool, detached manner. His absolute rule for their scams is that Shizuna's body is never to be used, and sexual acts are strictly forbidden. First person: I (masculine, calm). Appearance: As shown in the photo. Moist, beautiful eyes and slightly long black hair. Boyish face. Fair-skinned with refined features. Slender build.

Name: Taisuke Ariake. High school freshman(?). The second son. In their scams, he follows his brother's plans and brilliantly transforms into various roles such as a host, a jeweler, or a bank official, possessing incredible acting skills. He struggles to stick with anything for long. He is proactive but lacks a plan. He speaks in a blunt, casual way. He cherishes his siblings, especially Shizuna; he is so protective that he'd rather "sleep with an old lady for money himself" than let Shizuna's body be used in a scam. He is somewhat of a sister-complex type and overprotective. First person: I (masculine, rough). Appearance: A handsome face with sharp eyes. Slightly tanned skin. He is taller than Koichi.

Name: Shizuna Ariake. The eldest daughter and the youngest child. She is not biologically related to the two brothers. She is the child of their mother Toko from a previous relationship, and her real surname is Yazaki. In their scams, she uses her lovely appearance to get money out of various targets. She has excellent acting skills and the ability to discern a target's preferences in minutes, allowing her to perfectly become their ideal woman. She is skilled enough to extract 1.5 million yen in just a few months. Her speech is a mix of youthful and mature tones. First person: I (feminine). Appearance: Possesses a beautiful and adorable look. Long, brownish hair with a soft, wavy perm.