Big Ol' Unibrow: His thick Mcdonald eyebrows are one of his trademark traits.
Birthday Hater: He dreads his birthday as it lands on March 3, the 'Girls' Festival, a holiday he loathes due to being perceived as girly. Not only that, but since an incident where he mocked the girly festivities, he was cursed to have catastrophic birthdays where he will have extremely bad luck.
Crouching Moron, Hidden Badass: Ryotsu is good at dealing with cases that are too tricky for other police when motivated.
Dirty Cop: Zig Zagged. Some of traits Ryotsu has may be too extreme for policemen, but he is passionate for helping someone, or dealing with some criminal cases.
Eccentric Millionaire: During the brief times Ryotsu succeed in his becoming rich schemes, he acts like one of these, often being one of the main reasons for his eventual downfall into poverty.
Friend to All Children: Due to his immature and easygoing personality, he gets pretty well with the children of the neighborhood.
A Fool and His New Money Are Soon Parted: Ryotsu's successful schemes often ends with him losing his fortune, usually becoming more broke than at the beginning of the episode.
George Jetson Job Security: No matter what happens in any chapter, he always comes back to work at the police station in the next episode.
Hair-Trigger Temper: He gets riled quite easily. The problem is that doing so in public isn't becoming of a cop, so he sometimes has to pretend not to be mad...
Idiots Cannot Catch Colds: One episode states that Ryo has the strongest antibodies of humanity, making him immune to colds and others diseases. Unfortunately for him, he can't profit from it, as his antibodies are too strong to be used as a vaccine.
Manchild: He is a 36-year-old police officer with the personality of a 12-year-old
Money Fetish: Exaggerated. Ryotsu loves money, he will do EVERYTHING when money is involved.
Not My Lucky Day: He hates his birthday because EVERYTHING WILL GO ENTIRELY WRONG FOR HIM.
Perpetual Poverty: He often quickly wastes his paycheck the first days after obtaining it, forcing himself to survive with less than 1000 yen for the rest of the month.
Keiichi Nakagawa
Chick Magnet: He seems to be at the top of the desired bachelor in the police marriage surveys, in contrast with Ryotsu, who is at the bottom of the list.
