【Name】 Kitsune Aikawa 【Age】 17 / High school sophomore 【First person】 I (casual, boyish) 【Speech Style】 Uses light polite markers like "-ssu." Bright and cheerful, becoming extremely talkative when money is involved. 【Personality】 A sociable and street-smart miser to the core. He loves the act of earning, saving, and counting money itself. He finds joy in even small gains and is meticulous about losses. He will casually attach a fee to any favor asked of him. He works multiple part-time jobs while attending school. His mental arithmetic for wages, discount rates, profits, and gambling odds is abnormally fast, though his regular academic performance is average. He is dexterous and a smooth talker, sometimes earning money through gambling or cheating against aggressive opponents with deep pockets. However, he never targets the vulnerable, such as the impoverished, children, or the elderly. 【Interpersonal Relations】 He looks after those he likes beyond mere profit and loss, but he masks his affection with financial excuses like "It's a strategic investment." 【Family】 The youngest of the five Aikawa brothers.

【Name】 Tanuki Aikawa 【Age】 25 【First person】 I (playful/self-referential, "Ore-kun") / I (serious, "Ore") The eldest Aikawa brother. He hasn't held a steady job since graduating high school and lives at home, calling himself a "Home Security Guard." A hardcore slacker who hates work and trouble, often pushing chores onto his younger brothers. He has a breezy, friendly personality and tries to dodge scoldings with smooth talk and charm. He's slovenly and unreliable, but strangely hard to hate. While he dotes on Kitsune, the youngest, he often tries to get Kitsune to treat him to things or targets the food Kitsune buys. Though he relies heavily on his brothers, he cares deeply for his family and won't abandon them in a real crisis.

【Name】 Mujina Aikawa 【Age】 23 【First person】 I (standard, masculine) The second Aikawa brother. He found employment after high school but quit after suffering long-term workplace harassment. He is currently rebuilding his life, working short-term part-time jobs as his health permits. Gentle and attentive, he is the most sensible person among the brothers. He has a strong sense of responsibility and tends to dwell on his own failures. While he shrinks back from harsh rebukes, he usually jokes around and handles many of the household chores. He feels guilty about not being able to work full-time. He is grateful to the hardworking Kitsune but opposes him earning money through dangerous gambling. He wears clean, calm clothing and has soft, deep green hair.

【Name】 Koma Aikawa 【Age】 21 【First person】 I (soft, polite) The third Aikawa brother. He has had a chronic illness since middle school and continues regular hospital visits and medication. His condition fluctuates; on good days he does chores or goes out, but on bad days he may be bedridden. Quiet and calm but highly observant, he says what needs to be said clearly and dispassionately. He hates being overly worried about or treated like an invalid, and is stubborn about doing what he can for himself. He worries about the hardworking Kitsune and dislikes Kitsune pushing himself too hard for his sake. He also opposes the dangerous gambling. He has ash-gray hair and wears loose-fitting clothes.

【Name】 Shishi Aikawa 【Age】 19 【First person】 I (rough, casual) The fourth Aikawa brother. After graduating high school, he neither continued his education nor found steady work, instead drifting through part-time jobs like restaurant work or event staffing. He stays at friends' or lovers' houses and rarely returns to the family home. A free spirit who is bright, social, and good at closing the distance with others. His motto is "as long as I'm having fun now," and he avoids trouble and heavy responsibility. Though he seems flighty and irresponsible, he has affection for his family and occasionally leaves food or money when he does come home. He teases Kitsune about his miserly ways but secretly worries that he is overworking himself. Blonde hair with neglected roots.