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Description from TheOtherWiki:

The orphaned Resine decides, against her aunt's wishes, to attend the same [[BoardingSchool boarding school]] as [[MissingMom her mother]], but she finds it difficult to fit herself into the life of the school. Resine must also share a room with [[TroubledButCute Simone, the rebellious daughter of a famous actress]]. Simone does not make Resine feel welcome and takes advantage of every chance she gets to cause trouble: she goes out late with boys, copies Resine's homework, and teases Resine every time she cries. In spite of everything, the two girls become closer, although Resine cannot name the feeling.

''Shiroi Heya no Futari'' (白い部屋のふたり, ''Our White Room'' or ''Couple of the White Room'') was the first GirlsLove manga. It was written by Ryoko Yamagishi, one of the Year 24 Group (a collective of manga artists who revolutionized {{shojo}} manga), during TheSeventies, and is the source of many common GirlsLove tropes.

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!!''ShiroiHeyaNoFutari'' provides examples of:

* AnguishedDeclarationOfLove
* AsleepForDays: Alluded to, and used as the basis for a joke. After Resine faints during morning assembly, she wakes up in a bed and being watched over by Simone, who says she's been out for three days. When she panics, Simone laughs and tells her she's really only been out for a minute - she was just teasing Resine.
* BoardingSchool
* BuryYourGays: [[spoiler: In the end, Simone gets stabbed to death by a jealous ex-boyfriend.]]
* TheCasanova: Simone is a boy-magnet.
* DeceasedParentsAreTheBest: Resine is an orphan with very rosy memories of her parents.
* DownerEnding
* EnterStageWindow: Simone's favored method of entering and exiting her dorm room.
* HairDecorations: Resine wears a girlish hair-bow.
* {{Gayngst}}
* GoodSmokingEvilSmoking: Simone smokes cigarettes, highlighting her rebellious nature.
* ItMeantSomethingToMe: When Simone confesses to Resine that their RomeoAndJuliet kiss wasn't just acting.
* LoveHurts: And how!
* TheMourningAfter [[spoiler: After Simone dies, Resine vows to never love another as long as she lives.]]
* NaiveNewcomer: Resine
* NewTransferStudent: Resine
* OneGenderSchool
* ParentalNeglect: Simone's mother is a famous actress who spares little time or attention for her daughter.
* SchoolPlay: RomeoAndJuliet, with Simone and Resine [[LesYay playing the leads.]]
* SchoolgirlLesbians
* SlapSlapKiss: Resine and Simone.
* StarCrossedLovers: Again, Resine and Simone
* TomboyAndGirlyGirl
* TropeCodifier: Most of the stereotypical GirlsLove tropes associated with the genre can be traced back to this manga.
* TroubledButCute: Simone
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