* SugarWiki/AwesomeMusic: "[[http://www.youtube.com/watch?v=hBe4G9igmWI stone cold]]", the first opening theme.
** Ditto "Kiseki".
* ClicheStorm, or {{Troperiffic}} if you prefer.
* CompleteMonster: Dr. Kenmi was revealed as this in later episodes. To activate the mysterious Darkstone powers, Kenmi enacted torturous experiments on people and had murdered one heroine, Rinoa's, parents in order to force Rinoa's sister Aoi to activate her powers. Kenmi later attempts to rip out another heroine's heart after causing her financial ruin for his experiments, and is even revealed to have been behind the 'random' Darkstone attacks early in the series that had caused so much grief, all in an attempt to force his test subjects to go berserk.
* EnsembleDarkhorse: Kenmi's [[TheDragon SP]], despite her light amount of screen time. Most likely due to her unusual personality of lazing about with headphones on and doing nothing but eating and drinking until it comes time to fight, where she proves to [[BunnyEarsLawyer actually be a very good combatant]] while still [[ConfusionFu goofing around, making funny noises,]] [[IShallTauntYou and taunting]] [[ConfusionFu while fighting]], yet giving up when it gets boring. Naturally, she annoys serious people like Naito by showing up as he's trying to exact [[SeriousBusiness revenge on Kenmi]].
-->*[[BringIt Come-get-me taunt]] while she wiggles the "ears" on her armor*
-->"[[SayingSoundEffectsOutLoud Haiyaaaaaan!~]]"
-->'''Naito''': "[[NotAGame YOU THINK THIS IS A GAME!?]]"
* MagnificentBastard: Kenmi in how he keeps himself out of suspicion even with evidence looking right into the protagonists faces.
* MoralEventHorizon: Kenmi crosses it [[spoiler: if not for his inhuman experiments, its for his murder of Ruri's parents and the crystalization of Aoi to get her to activate her powers. On Christmas no less.]]
* {{Narm}}: In episode 12, [[spoiler: Fei]] turns into a Darkstone [[spoiler: as she thinks Naito has died because of her uselessness.]] The fact that she wants to kill Kenmi is very dramatic. The fact that her Darkstone armor resembles a purple and green robot bear with ears that would make Mickey Mouse's jaw drop completely ruins the drama.
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