The tipsy Haruno invites everyone upstairs so Yukino can say what she wants to say, and even pops out some solo champagne as she listens. The operative word there is listen: she actually does so, now that she can tell Yukino has something to clearly say.
Haruno says she’ll support Yukino in her efforts as a big sis should, but warns that if she goes back home, she may not be able to leave for a while. Yukino already knows the difficulty of what she’s doing, but she can’t win (her independence) if she doesn’t play, so she’s decided to finally take the field.
As Yui stays over to help Yukino pack her things, Haruno walks with Hikigaya, and expresses her astonishment over her little sis finally making herself clear. The ol’ Haruno cynicism is still there, citing that “nothing will change” whether thing works out Yukino or not, but that giving up on “various things” is part of becoming an adult, and it’s good to see Yukino take those first steps.
She also confides in Hikki that she’s not actually drunk, even though her face is flush and she’s favoring his shoulder. The flushness suddenly fades and she stands straighter, and her demeanor and voice suddenly more closely resemble Yukino’s.
No matter how much Haruno has drunk, a part of her has always been able to stay calm and observe and temper herself. And she has a sneaking suspicion Hikki is the same, whispering “you can’t get drunk” in his ear. Whether it’s alcohol…or love.
The next day at school, after a slight problem unlocking the club room, the trio are back at their places sipping tea when Isshiki Iroha makes her first appearance this season. She hooks up a portable projector and plays a TV drama, but not to just goof off. Instead of the end-of-year “thank you” party for grads, she wants to throw a prom, like Western high schools.
With so little time to prepare, it’s going to be a close call whether Iroha can actually get such an undertaking off the ground, and it wouldn’t even be for her class, but she’s determined to make it happen, stating her desire to be Prom Queen to be her primary motivator.
When Yukino tells her she’ll be queen for her own prom in two years even if she doesn’t “lay the groundwork”, Iroha stands her ground, insisting the prep is crucial to achieving her goals. Left unsaid is that within her selfish motivation there likely lies a desire to see Hikki, Yukino and Yui have a prom.
Yukino can probably sense this, and considering she has a lofty goal of her own, she’d be hypocritical if she pooh-pooh’s Iroha’s. So she agrees to help Iroha, but as an individual, not a Service Club member. She also tells Yui and Hikki they’re under no obligation to help her since it’s not an official request, but a personal one.
While they realize she wants to try to do this on her own, they’ll always be around to help out when needed (which is certain to be the case).
When Yui comes home and sees the photo of her between Yukino and Hikki, she frowns, and tells herself to forget the thing she saw while helping Yukino move: a photo of Yukino holding Hikki’s arm on the water ride, hidden behind the stuffed animals on her bed. Of course, Yui can’t forget what she saw, because it’s just another confirmation of the “place she can’t get into”, no matter how many times she stands in front of the door.
She interprets Yukino’s treasuring of that photo as further evidence she has feelings for Hikki. Yui has feelings for Hikki, but also loves Yukino, thus leaving her perpetually on the outside looking in. She’s had to be content with that limbo, in which her and Yukino and Hikki’s genuine feelings—and the conflicts they create—have been left unsaid, clearly or otherwise.
But with Yukino starting to speak clearly, that’s coming to an end. There’s an unavoidable element of destruction inherent in all acts of creation—in this case Yukino’s New Start, but also the overarching physical and psychological transition into adulthood. Yui sees that on the horizon and fears she’s unprepared…but isn’t everybody?