Harumuu

HaruMuu is the het ship between Haruka Sakurai and Muu Kusunoki from the MILGRAM fandom.

Canon
Haruka and Muu are fellow prisoners at MILGRAM and close friends. In Season 1, the two seem to get along as both of them are a bit quiet and timid in nature. When asked, Haruka states that one of the prisoners he talks to the most is Muu. Muu frequently pays attention to Haruka. She also mentions that he is the one she gets along the most with.

Later on in Season 2, it’s revealed that Haruka and Muu developed a co-dependent relationship, where Muu takes on the role of a leader or queen and Haruka relies on her for attention, seeing her as his “real” and “only” mother. Haruka addresses Muu by “-san” while Muu addresses him with “-kun”, showing the power dynamic between them. Haruka is aware that Muu is using him for her own motives; when confronted about this by Es, he responds blankly saying, “So what?”, explaining how he doesn’t care and that’s he’s grateful for the fact he’s worthy enough to be used by Muu. In Jackalope’s words, Haruka enjoys being dominated by Muu. Jackalope jokes that Haruka and Muu are in a romantic relationship and that they “do the lovey-dovey” after Haruka got carried away. Yuno often comments on their relationship.

Haruka has an attachment to Muu, relying on her greatly to the point where it’s nearly borderline obsessive; threatening to kill Es if they don’t forgive Muu and planning to kill himself if Muu is declared guilty, seeing Muu as the only reason to stay at MILGRAM and rejoicing that he’s ‘met his actual mother all along.”

It’s unknown whether Muu truly views Haruka as a friend, as she takes advantage of his attachment for her like when she guilt-tripped Es to forgive her in order to stop Haruka’s suicide plan. Though, Muu states that her relationship with Haruka is highly beneficial, and that she “really feels their friendship.” Muu says that she enjoys their friendship since Haruka listens to whatever she says and always does as she commands him. Despite her manipulation she seems to have a genuine liking for Haruka, calling him kind and supposedly appreciating him. Though it’s implied she doesn’t think very highly of him when she states that everyone at MILGRAM has a screw loose.

Second Trials (Season 2)
In the introduction video for the second season, after Es wakes up, Jackalope starts explaining the timeline of events that had happened after the first round of verdicts. During Haruka's section, he mentions that being voted "forgiven" unlocked his "desire to be dominated," which led to him forming a codependent relationship with Muu. While in Muu's section, he mentions that Muu is able to be her real self as being voted "forgiven" helped her lose her fear and anxiety of being trapped in MILGRAM. Jackalope suggests multiple terms to use for their relationship ("supply and demand", "queen and slave") before moving onto the next prisoner.

In Haruka's voice drama, "Transformation of a Weakling", Haruka has a breakdown and attempts to attack Es but Es stops him, then they proceeds to hit him once and call him an idiot multiple times. Haruka then breaks down more in a delirious state and starts lamenting the way his mother neglected him and the fact she never gave him and attention. Then, Haruka says that Muu was his "real mother” all along, and further states that she's the only one who acknowledges the once "useless him”, stating how she gives him acknowledgment, attention, and praise, panting and laughing while doing so. He states that his current self after the first trial only exists because of Muu, and that as long as Muu is here there’s meaning for going to MILGRAM. After this, Haruka mentions that he’s happy that he met his “real mother”, and that he has to be a "good boy" for Muu’s sake.

Haruka also reveals that Muu is still scared of MILGRAM, and because of this, he asks Es to not scare her. As the conversation comes to a close, he then asks Es if he can say something. When permitted, Haruka threatens to kill Es if they do not forgive Muu for her murder of Rei. Es remarks that Haruka can’t kill them, so in response, Haruka responds that he’ll kill himself then, laughing and saying he’s not an idiot.

In Muu's voice drama, "Queen B", she reveals to Es that Haruka told her about his suicide plan if Es does not forgive her. Muu stated that she can feel the friendship between the two of them, knowing she feels at ease knowing that Haruka would do anything for her. When Es accuses her of exploiting Haruka, she claims that she doesn't understand what they're trying to say and continues explaining how beneficial their relationship is. After Es asks if she isn't going to stop him from conducting his suicide plan, Muu says that since it's something Haruka wants to do, and because friendships are all about letting your friends do the things they want, she isn't planning to do anything.

In the second round of interrogation questions, upon the prompt, “What do you want from the Warden?” Haruka writes, “Please forgive Muu-san.” When asked her opinion on Haruka, Muu writes, “We’re friends, he treats me very well.”

Quotes
"Since his [Haruka's] actions were accepted, he's getting carried away, doing the lovey-dovey with No. 4 [Muu]... Ugh, what a sight."

- Jackalope in "Second Trial Commencement Notice"

"I've... changed? Ah, my hairpins and clothes, they're all things Muu-san picked out for me. How is it? Muu-san is extremely nice, she always pays attention to me."

- Haruka in his Season 2 Interrogation

"It was really scary before, but now I feel at ease. And on top of that... Haruka-kun is really kind! He listens to whatever I say."

- Muu in her Season 2 Interrogation

"[...] As long as Muu-san is here, I feel like there's a meaning to me coming to MILGRAM."

- Haruka in the "Transformation of a Weakling" Voice Drama

Fanon
Harumuu is a somewhat popular ship in the fandom. It is currently the most popular heterosexual ship including Haruka or Muu. It is mostly rivaled by Muurei, the femslash between Kusunoki Muu and her victim Rei. On AO3, Harumuu currently has 20+ works. Harumuu was primarily shipped for their close relationship and because Muu was the closest person Haruka talks to and vice versa. After Season 2, some dislike the ship as Muu was taking advantage of her relationship with Haruka and remaining apathetic to his suicide plan, while Haruka has an unhealthy attachment to Muu.

Fandom

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 * TWITTER

Trivia

 * As mentioned in Muu's second voice drama, Muu picks out Haruka's clothing and puts hairpins on his hair. The hairclips Haruka wears originally were Muu's as her hand-me-downs.
 * They have a height difference of 12 cm, with Haruka being 174 cm and Muu being 162 cm.
 * Jackalope and Yuno jokingly implied that their relationship was of a romantic one while Muu stated in her interrogation in the second trial that there's nobody she likes, assuming romantically.
 * Both Haruka and Muu were voted "not forgiven" during their second trials after receiving "forgiven" judgments during their first trials.