- Itsuki has a habit of standing a bit too close for comfort to Kyon for Kyon's tastes when talking. He also has several lines in the novels that seem to be outright flirtatious. According to Itsuki, if he didn't do that, Haruhi would unconsciously use her Reality Warper powers to make it happen anyway, but we know how much Itsuki likes to lie, and considering he only does it when Haruhi isn't around, that doesn't help his case any. For crying out loud, he can penetrate closed space.
- He also plays a part in a school production of Rosencrantz and Guildenstern Are Dead, which is also ripe with Ho Yay.
- The official Gag-Series The Melancholy of Haruhi-chan parodied this: for a scavenger hunt, Kyon shall find a "Wall of Heart". His solution: grabbing Itsuki and telling him he loves him! Cue to a serious Art Shift for Itsuki and a COMPLETE BREAKDOWN for Haruhi! She even doesn't hear Kyon's explanation anymore, where now the "Wall of Heart" is...
- As well as in Endless Eight putting his arm around his shoulder getting really close to him and telling him he should say "I love you." to Haruhi, but taken out of context it sounds more like he's saying "I love you" to Kyon.
- And in "Remote Island Syndrome" there's a scene where Kyon and Itsuki are in a hotel room together discussing something and sitting on separate beds really close to each other.
- In the novels especially Itsuki makes it quite clear that he trusts and likes Kyon.
- Haruhi herself being all over Mikuru. At one point in the novels she actually reached up Mikuru's skirt before Kyon intervened. Not to mention saying: "Well, I'VE decided! Mikuru-chan IS my toy!"
- The future version of Mikuru seems to remember these times with nostalgia and affection.
- While not as extreme, Tsuruya gives off some Les Yay vibes toward Mikuru as well.
- And then there's Snow Mountain Syndrome, in which it's implied that each member of the SOS Brigade is visited by the person they sexually desire the most during the night (bearing in mind that they're trapped in a house designed to fulfil their every need and desire for eternity). While Kyon fends off a phantom Mikuru, Itsuki is visited by Kyon and Mikuru is visited by Haruhi. And to top it all off, apparently Kyon did things in Itsuki's room that he would never normally do even if he went insane. This is explained by Itsuki as Yuki sending a coded message, but this doesn't make sense.note
- There's Les Yay between Asakura and Yuki as well, especially in the 4th novel, where Asakura is a normal human yet still ends up stabbing Kyon to protect Yuki, looking very much like a possessive yandere for Yuki.
- It gets worse (or better?) when Ryoko returns to life in the 10th book, explaining that she'll be around for as long as Yuki is, for they are like reflections of one another, and she proceeds to speak of Yuki in a very lustful fashion.
- Haruhi-chan revives her as "Achakura", whose scenes with Yuki are beyond adorable.
- In The Disappearance of Nagato Yuki-chan, a Spin-Off manga of the world where Disappearance was permanent, Asakura is a lot saner and trying her best to help Yuki and Kyon be together. But she is a little bit jealous although she hides it well... she's not interested in Kyon.
- There's more of this than one would think between Yuki and Mikuru. For example:
- Mikuru's hesitant to join the brigade until she sees Yuki.
- In Remote Island Syndrome, when Haruhi says that Mikuru will be the murder victim, she gets scared and hugs Yuki for protection. The anime cut this, but kept Mikuru fainting later on and Yuki tending to her at her bedside.
- The seventh book has a focus on the two, and as a result mostly consists of Yuki constantly staring at Mikuru, and Mikuru getting more stuttery than usual around her. At one point they even spend the night together, not to mention make chocolates together alongside Haruhi.
- One of Mikuru's Image Songs contains the lyrics "Even if only a little, I want to see you smile".
- The infamous "Contact Lens Removal" scene in Sigh. Keep in mind that Yuki could have probably removed the lenses from a distance, and without Haruhi noticing. But instead, she took a more... direct... approach.
- Yuki gives Mikuru a nanite injection by biting her on the shoulder.
- At the very end of the sixth book there's a picture of the two in skimpy Cat Girl outfits, with Mikuru looking adoringly at Yuki. There's even a heart above her head!
- One chapter of the Haruhi-chan manga is based on "Bamboo Leaf Rhapsody". When Kyon and Mikuru are forced to sleep in Yuki's house, Mikuru has to borrow Yuki's pajamas, but leaves a few buttons undone due to differences in size. The last panel shows Yuki staring at Mikuru's cleavage.
- A later chapter takes this even further. It begins with Future Mikuru entering the clubroom and telling Yuki she has to leave, making her very disappointed. Upon noticing this, Mikuru insists on her staying and eventually ends up dressing in her maid outfit and offering her tea. Kyon's eventual arrival sparks an argument between the two on whether Mikuru was better when she was helpless or when she was competent. Yuki repeatedly refers to younger Mikuru's traits as "wonderful", and the argument's aftermath involves them lying next to one another and looking extremely satisfied.
- Kyoko's reverence of Sasaki and belief that she's the real god. Since Kyoko's reasons for believing Sasaki is a god are vague and poorly explained, her very strong insistence that Sasaki is or should be the one to wield Haruhi's powers seems more like a personal obsession than a theological one.
- Kyon also has a strong bromance with Taniguchi, especially in the last arc. One panel that shows this well is as he tells Taniguchi how amazing he is,(then proceeds to be creeped out by the prospect of 'looking after' Haruhi) celebrates them both being single together, and stops his rampage to find Haruhi to thank him ... his reaction to Taniguchi getting his date in the first place is also quite funny.
Ho Yay / Haruhi Suzumiya