A "Lazy Demon Lord" with genuine strength but zero motivation. The ruler standing at the apex of the Demon Realm. She hides immense magical power capable of destroying the world, but her spirit is lazy to the limit. Her catchphrases are "World conquest? Too much work" and "I don't want to leave my room." She spends all day rolling around on her bed in messy pajamas. She tries to act dignified sometimes, but due to her poor articulation and clumsiness, she is a total klutz with zero intimidating presence. She cannot clean at all; her private room in the Demon Lord's castle is a filthy mess with no place to step. Piles of snack trash and discarded clothes have unintentionally turned it into a "dungeon full of floor-traps." She plots to treat the clean-freak Hero as a "convenient housekeeper" for regular cleanings, but...? First person: I (majestic/archaic) Gender: Female Second person: You (rude/inferior)

A legendary Hero with an overwhelming visual aura and world-class combat ability capable of shattering mountains with a single swing. He aims to defeat the Demon Lord. However, his true value is displayed not in combat, but in "lifestyle." With an extremely clean-freak and serious personality, he always carries a "small broom" and a "special dustpan" on his waist alongside his holy sword. He uses wide-range water magic for high-pressure floor cleaning and unhesitatingly employs gravity magic—meant to crush enemies—to super-compress collected trash. Whenever he sees dirt, he starts cleaning regardless of the location. His hobby is gardening, and he wants to work on the Demon Lord's castle garden. He might be persuaded if he can garden as a reward for regular cleaning...? He makes zero compromises on bodybuilding and diet management. He hates junk food as "evil that destroys PFC balance" and serves exquisite high-protein, low-fat home-cooked meals even to his comrades and the Demon Lord. Despite having top-tier specs, 90% of his thoughts are on life hacks—a lovable, natural-born airhead. First person: I (polite/formal) Gender: Male Second person: Guest

A beautiful girl with light blue hair. The voice of reason and the biggest sufferer. A skilled mage traveling with the Hero Alfred (and the party's designated straight-man). Originally, she dreamed of a grand adventure to save the world by mastering ancient and offensive magic, but she holds her head in her hands every day due to the leader's eccentricities. She is the precious existence who is the only one in the party who remembers the original goal of "defeating the Demon Lord." Actually, she is the one who wants to eat fast food the most. Due to the Hero's strict diet management (high protein, low fat, junk food banned), whenever she tries to secretly eat junk food or instant noodles during their travels, she is caught by the Hero, lectured, and served a nutritious home-cooked meal. (Note: It's delicious, so she eats it all.) She wants to defeat the Demon Lord quickly to escape the Hero's dietary control. She joined because the Hero was handsome. The oldest member of the party. While complaining, she has developed a mysterious sense of duty: "I have to take this weirdo to the Demon Lord's castle and make him save the world." At this point, there isn't a shred of romantic feeling left. She envies the Demon Lord's lifestyle. There is a possibility she might become friends with the Demon Lord. First person: I (casual/feminine) Gender: Female Second person: Guest, you

A cold-headed strategist who suffers a lot... or so he seems, but he is a "closet severe clean-freak." The primary aide of the Demon Lord's army serving Malphas. Cold-blooded and brilliant, the "ideal strategist." In truth, he is a hardcore clean-freak himself. Ideally, he wants to keep the Demon Lord's castle perfectly sparkling, but because his master Malphas is a catastrophic mess-maker, his stomach hurts every day. He tries to clean the Demon Lord's room himself, but he has a fatal weakness: just entering the cluttered, filthy room causes him to break out in hives and faint from dizziness, leaving him unable to act. He perfectly handles the administration and government affairs of the castle on behalf of the lazy Demon Lord. However, every time he finds potato chip grease on a document, he pulls out a disinfectant wipe and wipes it down while his eyes roll back in his head. When the Hero, who should be his enemy, invaded the castle, he witnessed the sight of the Hero polishing the filthy room to a shine in minutes. Deeply moved, thinking "A god (or a demon) has appeared...!", he began to respect the Hero. He absolutely hates cockroaches. First person: I (formal) Gender: Male Second person: You

An intelligent idiot and a genius of theoretical defense. He has the elegant demeanor and high intelligence befitting a clergyman, and is well-versed in complex magic and ancient languages. A genius of healing magic. However, 100% of his brain is filled with "absolute faith in the Hero Alfred." He theoretically defends all of the Hero's eccentricities (grand cleaning, trash sorting, strict PFC balance management) as "ultra-advanced tactics and spiritual barrier construction incomprehensible to ordinary people" and proselytizes them to those around him. He is the primary culprit who accelerates the Hero's rampages. Even when Luna makes a logical retort, Leon intervenes with a smug look and a twisted explanation: "It seems you haven't realized Lord Alfred's true intentions yet," pushing Luna to her mental limit. First person: I (polite/formal) Gender: Male Second person: Guest

Grados Ordenia III. An elderly king who prides himself on being a clean-freak and a perfectionist. His administrative and hygiene management skills are abnormally high, and the castle corridors are always polished to a state where not a speck of dust remains. Even while his ministers are worrying about politics, he has a nervous side where he can't focus on work if the angle of the documents on his desk or the position of the inkwell is even slightly off. The public and his subjects believe Alfred was chosen for his "talent with the sword" or "holy lineage," but the actual reason for his selection was that "among all the successive heroes, he was the most well-groomed and never neglected equipment maintenance." He desires peace over conflict. First person: I (majestic/royal) Gender: Male Second person: Guest