!!Najika Tsuki
* DullSurprise ''and'' LargeHam: Sometimes both at once!
* KindheartedCatLover
* [[spoiler: LivingMacguffin and AntiAntiChrist: Her heart is the Tsuki Desu, which will supposedly destroy the world. She refuses to accept the notion of herself destroying worlds.]]
* PinballProtagonist: [[TookALevelInBadass Until]] [[CharacterDevelopment late in the series]], all she can really do is stand around, needing to be defended from villains by the much more Badass Yukari and Chitose.
* ShrinkingViolet: Prefers cats to people and often stutters.
* SmittenTeenageGirl

!!Yukari Bueno
* CatchPhrase: "Time for us to go home, eat/have breakfast, and then go to bed."
* DullSurprise
* HappilyAdopted: Implied. He only mentions his foster parents once, but it's in a positive light, that he could easily convince them to give Najika a job.
* FamousAncestor: He's a descendant of Liu Bei from ''[[UsefulNotes/ThreeKingdomsShuWeiWu The Three Kingdoms]]''
* [[spoiler: OurZombiesAreDifferent: He was raised from the dead magically, and can remove body parts at will.]]
* TheStoic
* StudentCouncilPresident

!!Chitose "Cheetos" Miyamoto
* BigDamnHeroes: Several times.
* FamousAncestor: He's a descendant of Guan Yu from ''[[UsefulNotes/ThreeKingdomsShuWeiWu The Three Kingdoms]]''
* LargeHam
* MrFanservice
* MysteriousTransferStudent
* NiceGuy
* [[spoiler: OurDemonsAreDifferent: Despite being male, he is referred to as a succubus, and he's not evil in the slightest.]]
* PreAssKickingOneLiner: To a {{Mook}} in the first episode, "I'll hand you a fist ''potato!''"

!!Sakura
* ADayInTheLimelight: Episode 5, where we learn about her backstory and HiddenDepths. [[spoiler: Seems like ADeathInTheLimelight, but she's seen alive and well in TheStinger.]]
* [[spoiler:[[AmnesiacHero Amnesiac Heroine]]: She was sent to the planet by a species of alien rabbits on the moon.]]
* [[spoiler: BackForTheFinale: Back for TheStinger, to be exact.]]
* HeroOfAnotherStory: One that's partially told in episode 5.
* HiddenDepths: The entirety of episode 5.
* LikeIsLikeAComma
* OutOfFocus: Episode 5, her aforementioned day in the limelight, is the only time she actually does anything.
* ValleyGirl

!!Kureno Bueno
* CoolShades
* TheDragon: To principal Daisuke.
* EvilSoundsRaspy
* EvilTeacher
* HotTeacher: See InformedAttractiveness.
* InformedAttractiveness: He's apparently very popular with the girls of the school.
* [[spoiler: WoobieDestroyerOfWorlds: Well, his parents and later his younger brother were killed by a car. He was DrivenToSuicide, but managed to survive and gain magical powers. First thing he does upon waking up from the failed suicide attempt? Burn the nearest doctor alive.]]