Tenma Tsukasa: Fellow group member and friend. They're working together to restore Phoenix Wonderland's Wonder Stage to its former glory. Emu likes his loud personality and finds him fun to be around, to Tsukasa's occasional annoyance. She is also shown to have a great amount of admiration for him after he defends her and the stage against Emu's brothers. Emu seems to look up to him, appreciative of his kindness towards his own younger sister, in comparison to her own brothers' more neglectful attitude towards her.
Kusanagi Nene: Fellow group member and friend. Emu thinks she's extremely talented at singing, while Nene thinks Emu is a weirdo alongside the rest of their troupe. Despite this, Nene is shown to genuinely care very much for Emu, and is quick to stand up for her to Emu's brothers. Nene wants to help Emu achieve her goal.
Kamishiro Rui: Fellow group member and friend. Emu is impressed by his over-the-top tendencies and thinks he is fun, while Rui thinks she's wonderfully bizarre. Rui and Emu sync very well, the two being able to communicate even when Tsukasa and Nene do not understand them.
Tenma Saki: Good friends who first meet in the Miyamasuzaka Sports Festival Executive Committee's planning sessions after Emu loudly bursts into the planning room. The two are quick to get along, sharing the same enthusiam about making the Sports Festival as fun as it can be. From there they grow to become good friends, meeting again when Tsukasa invites Saki and her bandmates to Phoenix Wonderland. Emu is happy to hear about the memories that Saki has of the times she spent at Phoenix Wonderland as a kid.
Mochizuki Honami: Close friends. The two were also classmates in their first year of high school.
Kiritani Haruka: Friends who first officially met during the Miyamasuzaka Sports Festival Executive Committee during one of their planning sessions, though Haruka had heard about Emu prior to the event. After Emu explains her desire to make the Sports Festival an event that can be fun and motivating for everyone, Haruka steps up and offers her support, much to Emu's gratitude. During the festival the two become a part of the same team and successfully win the race. Emu explains that it was the desire to be able to say "We did it!" to Haruka that gave her the motivation to give her all and win the race. The two become good friends from then on.
Momoi Airi: Friends following Secret ♡ Operation Valentine's Day. Emu recognizes Airi from the Good Morning show, which she used to watch as a kid. They formed a secret alliance with Saki as they baked cupcakes and other sweets for their respective groups.
Azusawa Kohane: Friends who were part of the same group at the Seaside School. Kohane is a big fan of Phoenix Wonderland. Kohane is one of the few people who can understand Emu's unusual style of speaking.
Asahina Mafuyu: An upperclassman that Emu was paired with for the 3-legged race during the Miyamasuzaka Sports Festival. She can tell that Mafuyu's smiles aren't real, and is outright terrified of her as a result. Despite finding Mafuyu scary, she expresses a desire to make her genuinely smile, though her efforts usually don't work out. In At This Festival Bathed in Twilight, Mafuyu confides to her and Rui about feeling like she doesn't have a dream nor something she's passionate about like the people around her. In the final chapter, Emu expresses her desire to see Mafuyu find what she truly wants to do.
Shinonome Ena: When Emu and Ena met in Paint What I Love ♪ Rainbow Canvas, Ena was initially very envious of Emu's drawing skills. However, Emu expressed that she liked Ena's art, surprising the latter, and that she would defend Ena if anyone mocked her drawings.
Hatsune Miku: Emu and Miku are a lot alike — both full of energy, life, onomatopoeias, and utter chaos. Emu loves the Wonderland SEKAI and Miku loves it when Emu comes to visit. They often end up in some sort of shenanigans, once almost falling off the Wonderland SEKAI's flying train.[1]
Kagamine Rin: VIRTUAL SINGER and Friend.
Kagamine Len: VIRTUAL SINGER and Friend.
Megurine Luka: VIRTUAL SINGER and Friend.
MEIKO: VIRTUAL SINGER and friend. Emu calls her "MEIKO-onee-chan" and sees her as a responsible older sister figure.
KAITO: Emu respects KAITO and views him as a reliable older brother figure, referring to him as "KAITO-oniisan", or "Big Brother KAITO" in English. She and Rui are perhaps the only character in the SEKAI to view KAITO as the older brother figure he desires to be viewed as, rather than a parental figure, as both Tsukasa and MEIKO seem to believe that KAITO is like a father.
Otori Keisuke: Emu's oldest brother. He often shuts down Emu's new ideas and plans for the park, stating that they are too idealistic. Although Emu tries her best to remain positive, her brothers' criticism does damage her spirit. It's also shown that Emu is also quite sensitive to rejection and disapproval, even when indirect, which may be another result of this criticism. After Wonderlands x Showtime puts on a show using the entire park as a stage in the Wonder Magical Showtime! event, Keisuke becomes more considerate towards her ideas. He even says "Wonderhoy" with her in the final chapter.
Otori Shousuke: Emu's second oldest brother. He is usually annoyed by her behavior, shutting her ideas down with blunt words. Shousuke is particularly harsh towards her, calling her selfish and telling Emu that both her and her ideas are dumb. After Wonderlands x Showtime puts on a show using the entire park as a stage in the Wonder Magical Showtime! event, Shousuke becomes more sympathetic towards her ideas, which Emu is very happy about.
Otori Hinata: Emu's older sister. Emu seems to be the closest to her out of all the Otori siblings, and they often go shopping together.[2]
















