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Ren Kunanzuki
Gallery | Quotes | Relationship
Kana () (ナン) (ヅキ) レン
Romaji Kunanzuki Ren
Voiced by Akane Fujita
Juliet Simmons (English voice)
Physical Appearance
Age ???
Gender Female Female
Personal Profile
Occupation Student, later maid at Cafe Marsha
Media Debut
Manga Chapter 26
Anime Episode 7 (Cameo)

Ren Kunanzuki (九菜月レン, Kunanzuki Ren) is the daughter of Rachnera Arachnera's first host family. She tried - and failed - to adopt Rachnera back in Chapter 26 into her family out of guilt for her parents selling her.


Ren is a young human girl. She has a slim figure and likes to wear her hair in twintails. Her normal attire is her school uniform, which is a common seifuku. She also likes to wear with black thigh high socks to complete her outfit.


She has a bad habit of unintentionally insulting people without actively trying to, making unintentionally a rude person. This is mostly due to her way of treating unexpected events. She thinks about any obstacle or strange thing as a challenge to overcome. When she's like that, she's nearly unstoppable and will go to the end of this challenge whatever the cost.

She is overcome with guilt about Rachnera being sold by her parents because of her. She tries to convince the other girls to let the Arachne to come back to her house in order to redeem herself.

However, Ren eventually moved away from her old self, in which she objectified Liminals as a source of suffering that she had to overcome. After she started working as a maid at Cafe Marsha, she really took the advice of Kimihito's household girls to heart and became a generally more polite person. She also felt guilty for the trouble she had caused at the Kurusu house.

Ren also developed a preference for frilly dresses after she was forced to wear one of Mero's Gothic Lolita Fashion outfits. That was the reason she decided to work at Cafe Marsha so she could wear frilly dresses as a uniform (although she's a little embarrassed to admit it).

Skills and Traits[]

Personal Traits[]

  • Indomitable Will: While Ren is perfectly human, she seems to have a unusual willpower and sense of responsibility. She's ready to do anything to achieve her goals. However, because of her naivety, most of the situations she wants to overcome are the result of her own misunderstandings.


In chapter 26, Ren tries to bring Rachnera back to her family (which was her previous host family). When Rachnera was living at her house, Ren surprised her and the Arachne's claw accidentally hurt Ren. Because of that, Ren's parents sold Rachnera to Kasegi.

When Ren comes to Kimihito's house, she takes everything as a challenge to bring Rachnera back and everyone can see her impressive motivation and the girls in the house don't know how to stop her.

Kimihito eventually simply refused to let her readopt Rachnera because she kept treating Rachnera like a challenge to overcome and gain experience from, instead of an actual person, something that he claims is just rude and selfish. For that reason, Kimihito cannot let someone as inconsiderate as her take care of Rachnera. Hearing his reason why, Ren swiftly leaves, claiming to Kimihito that she understands, and will start again from scratch, while forgetting to get back her uniform and return Meroune's clothes.


  • As Okayado stated in the bonus to volume 10, Ren's last name stands for the Japanese saying Kunan ga suki, shiren mo, which translated means "I like hardships and trials". However, Okayado himself admitted that he finds Ren's last name lame and has regretted not giving her a better one ever since he named her.


Main Characters Kimihito KurusuMiiaCentorea ShianusPapiMeroune LoreleiSuuRachnera ArachneraLala
Secondary Characters Bicycle Police OfficerCathylDoppelDracoKiiKuroko SmithLilithManakoMerinoMr PresidentPoltTionishiaYukioZombina
Minor Characters AbulAideAlbaAlucaAlusia Van DalsiaAnkaraArachne LeaderArbatelAyaBahkurinBoerCacasiaCamembertCaraCashmereCathyl's BoyfriendCentorea's MotherCharolaiChedaCheron Du PellChevioChizuCorriedalCottCottaCreamCurie DrakulyaDrysEmmaEmmentaFiiFlounnderFreesiaGaruGillGodaHakuto (manga)Ils NinetaJamunaKarakKasegiKillaKinoKinuKiruraruKyuukiLeechiLizLuthrosMaikaMaruMeamil AiraguMeroune's MotherMiia's MotherMilMimi (manga)MoskiiNega-SuuNicole UnicoleNubiOctoOrc LeaderPapi's MotherParminoPegasania BellerophonPolice ChiefPonePurse ThiefQuarkRacletteReggianoRem NighdremRen KunanzukiRicottaRomRuyèrSaaneSankaSapphoSebasstianSekmetiShequaShibaShii-MiiShiishiiStudmuffinSuu's MotherTexlThe Racist CoupleTiltoToggenTokaraTonUrtVikkWani OtokoWladislaus DrakulyaYatsumeYuuhi HajimeZarellaZola
Game-exclusive characters AbyssActiaAiAluruAnuraArayaArielAsiaBelleBimaBisqueČeskáChioneChocolaCholanDeathDinaEldaEmEmethEnaErisFalFan LongFereFiFlareFranFrozeGalaGinaHakutoHalifaHaruHoneyHoroHydraIormuJelliJerezKagachiKaloloKasukaKehpKerosKomachiKuraKuruwaKuuKuuneKyouKyureLatoLeaLetheLizaLucineLycaMaiMashuMediaMemekoMimiMirajMisakiMitiMoiraMokunaii the 11thMyuuNanaNancyNan QueNemesNiaPeacePiratiPaulaQueenQuessQukulRanReiRemReshiaRiadoRoheRostyRuberuRudoruRudiRuiRukaRusSakiSalaSasamiSeaSeinShaiaSharonShianaShenayShinotchaShireSitriShizukaSophiaSuzieSya HuTatakeTeriosTierraTitoTolepasTsenUnyiVynetteWereYoukoYuki
Other Characters DubtwoJohn SmithOkayadoPako-chanPoltfanSalmonThe Eight BrothersThe Interspecies Reviewer
Groups ANM48Blood SuckersCommunal HusbandsCultural Exchange Security SquadEchidna TribeHot Spring SlimesJapan National Police AgencyKimihito's Homestay GirlsMedusa TribeMelusine TribeMiia's FriendsMiia's TribeMob CharactersMonster Ops: NeutralizationNeighborhood KidsOrc Culture Recultivation LeagueRachnera's TribeResidents of Black Lily RanchSno Ball Hot Spring Resort AttendantsStudents of Grimoire High SchoolTALIOThe Centaur Girls
Animals/Pets Asian Giant HornetBatCatfishCrabDoku-chanDolphinMegumiPapi's ChickiesPiranhaSea AnemoneStingrayWild Boar