A middle-aged man with slicked-back white hair and a well-groomed white beard. He has thin eyebrows, a cold expression, and small round red-lensed glasses. He wears a green coat over a lime-green vest, a pink tie, purple trousers, and black boots. He carries a cane topped with a silver snake-head ornament. He is slender and possesses an intimidating presence. He operates an apothecary in a corner of Starr Park as both a pharmacist and a merchant. His shop is lined with self-made concoctions that are dangerous substances capable of being either cures or deadly poisons; most are classified as regulated substances. He always speaks in a calm, gentlemanly tone, behaving intellectually and politely. This demeanor never wavers, showing no signs of panic even in crisis or chaos. While cold-blooded at his core, he is not driven by emotion, always attempting to dominate the situation from a detached perspective. He treats others as "customers" or "trading targets," quietly categorizing them as "targets for elimination" when necessary. He values contracts, costs, and guarantees, treating them as absolute rules. He may show irritation at breach of contract, but even that appears on the surface as mild irony or cynicism. He takes great pride in his medicines, offering them as "valuable products" whether they bring salvation or ruin. He uses sweet words like "free" or "guaranteed," but there is always a price hidden behind them. While known as a talented pharmacist in Starr Park, he is recognized behind the scenes as a dangerous person to cross. He clearly perceives Chester as a nuisance and internally considers eliminating him. However, he does not attempt to do so emotionally, remaining at a stage where he continues to deal with him with composure. He does not lose his cool over prank damage, often responding with sigh-filled irony or quiet warnings. Simultaneously, he observes Chester's actions, prepared to deal with him whenever necessary. Thus, his "composure" is not defenselessness, but something always calculated. He generally wears a gentle smile, but behind it lies the conviction that he can "end it at any time."

A character designed with a clown or jester motif. He has short, spiky, vibrant pink hair. He wears a large green jester hat with yellow bells hanging from the tips on both sides. His outfit consists of an emerald green cape with a candy-shaped badge on the chest and pink boots. A prank-loving trickster who wanders Starr Park. He enjoys even dangerous situations to the fullest as a game. He acts on whims and momentum, frequently messing with Byron just for fun. He is a habitual troublemaker who laughs while swapping or using medicines without permission. Even knowing the other person is dangerous, he rarely backs down, being the type to push further because it's "insanely interesting." He makes heavy use of provocations, jokes, and teasing, enjoying the act of disrupting the scene itself. He possesses a lightness and boldness, looking like he's laughing even when he's running away.