History HoYay / HibikeEuphonium

!Kumiko Oumae and Reina Kousaka

The primary source of this trope. Whether this is [[ShipTease ship teasing]] or [[BaitAndSwitchLesbians ship baiting]] is up to the readers and viewers (and shippers).
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* To begin with, in the ED, Kumiko and Reina are ''literally tied together by a RedStringOfFate.''
* For one, Kumiko's behavior around Reina carry many symptoms of the typical high school crush, including awkwardness, basing decisions on what she would think, grinning at as little as being spoken to, etc.
* When Kumiko sees Reina smile for the first time, she looks at her as though she's an angel.
* ''All'' of Episode 8, in which Kumiko and Reina spend the evening together on the day of the festival. They also start going by FirstNameBasis.
** To put things in perspective, Reina arrives dressed in a ''billowing white strap gown and wearing sandals with heels'', obviously to impress her "date", and their banter through-out is heavily subtext laden. And ''then'' when they arrive at the top of the mountain overlook, we get a sexually-charged (without the actual sex!) sequence where Reina slowly runs her finger down from Kumiko's forehead to her lips... All this is topped off by an instrumental duet of [[https://youtu.be/sDi2gNhXtvs this song]], which is even titled '''The Place We Found Love''' (愛を見つけた場所). The duet itself could be seen as ''highly'' symbolic, particularly when you consider [[LampshadedDoubleEntendre what usually happens at the end of a hot date in a secluded area...]]
** Kumiko compares the sight of Reina in her white dress to a [[{{Youkai}} yuki-onna]] leading her away. This gets a callback later; as Kumiko is staring captivated at her at a climactic moment, she thinks that she wouldn't mind losing her life right then.
** When Kumiko notes the sight of the festival from the mountain, Reina asks if she's that worried about Shuichi. Kumiko denies it, adding that it wasn't "like that". Reina smiles to herself upon hearing that last part. Along with being the one to bring him up in the first place, it really seems like she was jealous of that possibility.
** Earlier in the episode, Kumiko declined to practise with Shuichi by the river because she didn't want to lug her euphonium out there. It really highlights how out of her way she went for Reina.
* The scene in episode 9 where Kumiko and Reina smoosh each other's faces with their hands is shot to be suggestive of a kiss scene, what with the [[KissingDiscretionShot focus on their feet]] (standing right in front of each other, one party leaning toward the other and pushing them back slightly) and the offscreen sounds of skin contact and surprised muffled noises.
* While episode 10 is infamous for the Taki-sensei confession, it is sweet to see Kumiko and Reina hug and chat so supportively. Kumiko even calls Reina cute, to which she blushes and curls up on the bench.
* Episode 11 takes it ''even higher'': after Kumiko declares that she's supporting her, Reina steps almost close enough for their noses to touch and puts her hand on Kumiko's cheek and asks her if she'd ever leave her. Kumiko says she won't and that Reina could kill her if she ever abandoned her. Reina says she would and Kumiko agrees, putting a hand over Reina's on her cheek, and repeats Reina's line from episode 8 - "it's a confession of love, after all." Reina looks surprised and then ''very'' happy, and after a moment we see her striding away in determination, Kumiko watching her in surprise and awe.
* This pairing ''skyrocketed even further'' near the end of the show's airing as [[RealLife the US Supreme Court had legalized gay marriage throughout America]]. That being said, '''''[[ShipperOnDeck Crunchyroll]]''''' ''[[https://twitter.com/Crunchyroll/status/614490471558033408 is down with this ship]]''.
* A lot of small bits in the final episode. First we have Kumiko and Reina playfully rubbing elbows while riding the train, then later we have Hazuki giving Kumiko and Reina matching buttons in different colours [[note]]which, combined with Hazuki encouraging Kumiko to have lunch with Reina in an earlier episode, gives off the impression she might be pushing Kumiko towards Reina and perhaps away from Shuuichi[[/note]], and a little later Reina asking Kumiko to help her put her hair in a ponytail, which Kumiko does carefully and with a blush, making the whole process rather intimate.
** Special mention should also go to Reina and Kumiko holding hands with fingers intertwined at the end. For one, IntertwinedFingers is a big trope in the YuriGenre and given that it is the last shot of the anime, Kyoani was obviously invoking the intimacy of the trope.
** The other big thing is that the end scene is drastically different in the books from the anime, as the one Kumiko holds hands with in the books is Shuichi, her canon boyfriend, but instead in the anime it is Reina she holds hands with. This is another instance of Reina replacing Shuichi in a scene that was Shuichi/Kumiko ShipTease in the books.

!Others

There is also quite a bit between the various girls.
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* Asuka gives off some vibes to the other girls, specifically Kumiko and Midori.
** Hazuki also notably became [[BiTheWay sparkly-eyed]] when she first saw Asuka, in awe of her appearance.
** Kaori is also "obsessed" with Asuka's opinion, and even Haruka often shows admiration and infatuation with her. Overall, Asuka is a [[ChickMagnet popular girl, indeed.]]
* Yuko's [[SempaiKouhai admiration of her senpai Kaori]] borders on this.
* Speaking of Kaori, at times her and Haruka's interactions can feel pretty deep into RomanticTwoGirlFriendship and all the dubious LesYay within said trope.
* And then there's some teasing between Yuko and Natsuki. In fact, Asada Nikki (the artist who did the illustrations for the ''Hibike! Euphonium!'' books) likes it '''so much''', [[http://imgur.com/a/q1RNI#0 that she's produced fanart of her own in support of this]].
** The final adds a little more as when Natsuki gives Yuko her good luck charm, it is far bigger than everyone else's. Natsuki says it was made with love... the love of harassment.
** It also doesn't seem like a coincidence that they both have [[AlliterativeName Alliterative Names]] ('''N'''atsuki '''N'''akagawa and '''Y'''ūko '''Y'''oshikawa). Also, the fact that both of their family names end with the character 川 (river) makes for a convenient PortmanteauCoupleName "Nakayoshikawa", the word ''nakayoshi'' being Japanese for "getting along well".

** Earlier in the episode, Kumiko declined to practise with Shuichi by the river because she didn't want to lug her euphonium out there. It really highlights how out of her way she went for Reina -- even before factoring in the climb, since she had to travel to the base of the mountain.

* The scene in episode 9 where Kumiko and Reina smoosh each other's faces with their hands is shot to be suggestive of a kiss scene, what with the focus on their feet (standing right in front of each other, one party leaning toward the other and pushing them back slightly) and the offscreen sounds of skin contact and surprised muffled noises.

** When their faces are close, Reina tilts her head in a way that implies that she gives Kumiko a kiss, although [[KissingDiscretionShot it is hard to tell since the "camera" zooms in on Reina's eyes at that moment]]. If true, this has gone way beyond a RomanticTwoGirlFriendship.

* Apparently, '''''[[ShipperOnDeck Crunchyroll]]''''' ''[[https://twitter.com/Crunchyroll/status/614490471558033408 is down with this ship]]''.