Violinist of Hameln/YMMV


 * Complete Monster: While most of the mazoku tend to be at least somewhat Laughably Evil, and remain entertaining despite being thoroughly monstrous, Great Demon King Chestra definitely crosses the line to this. It doesn't really hit you what a Complete Monster he really is until the flashback to Pandora: after he got out his body, but not his magical power, from the Pandora's Box, he pretended to be her apparent loving husband for a couple of years, so he can trick her into opening said box. Bad enough? Wait, there is more. His children with Pandora? Explicitly meant to serve as food to restore his power. Nearly all the shit they were put through? Orchestrated by him to make them magic-rich and tasty.
 * And then when the bastard let all the Mazoku out on Pandora's front lawn, he stops the mooks from tearing her apart...
 * Evil Is Sexy: The manga clearly subscribes to this trope - Sizer's normal outfit is very modest, while "Dark Sizer" is Stripperific.
 * Iron Woobie: The entire Team Hamel and some of the supporting cast. After all the horror and torment piled on them, it's amazing that they aren't suicidal wrecks.
 * Magnificent Bastard: Arguably Chestra. Definitely Vocal. The sheer evil he puts Orgel through...
 * Narm: A lot of people consider the anime just as hilarious as the manga, only in a totally different way.
 * Sequelitis: Violinist of Hameln: Shchelkunchik. It takes place in Sforzando's School of Magic, where both Clari and Cornet studied, and the first enemy to show was a giant black fairy. Also, Hamel's son
 * Spotlight-Stealing Squad: Arguably, Sizer in the manga.
 * Tear Jerker: Anything involving
 * Also,
 * ...OCARINA. ;_;