* AwesomeArt: Not just the manga itself, but the rest of Rosca's art. For reference, here's [[http://clockwork7.deviantart.com/art/Can-t-Sleep-424354227?q=gallery%3AClockwork7%2F11604668&qo=13 two]] [[http://clockwork7.deviantart.com/art/Carmen-sketch-425566381?q=gallery%3AClockwork7%2F11604668&qo=12 pics]] that she drew out of insomnia.
* IronWoobie
** Lucy Snow is bullied by students and teachers alike, and is constantly on the verge of beng sent to detention even when she's an ace student. In spite of her circumstances, she buckles down and masters what she's taught to become a GuileHero.
** [[InvertedTrope Inverted]] with Claude, a {{Determinator}} that doesn't become TheWoobie until [[spoiler:[[YankTheDogsChain he has his chain yanked]] at the end.]]
* JerkassWoobie
** [[TheBrute Stinch]]. In a setting full of geniuses - [[EvilGenius evil]] [[GuileHero or otherwise]] - he stands out for being exceptionally [[DumbMuscle dumb]], and the other characters are all too aware of this: the savvier children don't take his authority seriously, and the Engineers [[DudeWheresMyRespect take his loyalty for granted]]. [[spoiler: He becomes aware of this and has a VillainousBreakdown during the climax.]]
** [[BetaBitch Carmen]]. She's only a {{Jerkass}} because of [[ToxicFriendInfluence her unfortunate friendship]] with [[AlphaBitch Summer]]; she is an otherwise meek girl who would rather avoid conflict, [[JerkWithAHeartOfGold and is genuinely protective of her friends]].
* NightmareFuel
* UglyCute: Stinch