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Haru Miura is a Midori Middle School student who likes Tsunayoshi Sawada. She is known for having a lot of costumes and disguises.
Haru is young teenage girl, with a slender and short build. She has black hair (changed to dark brown in the anime), which is always worn in a ponytail and tied up with green hair bobbles.
While consistently changing outfits in the series, her most promonient outfit is her Midori Junior High uniform. She wears a white formal shirt, a cream sweatervest with a blue bowtie, a gray skirt, black knee-high socks and brown shoes.
Her future counterpart has shorter hair, wearing a dark blue short-sleeved blouse and a white shirt underneath, a gray bracelet on her left arm, and black pants. While in the future, Haru is described as being more feminine compared to in her youth.
Haru is an upbeat and enthusiastic girl, living a mostly carefree life in Namimori, as well as being known to be somwhat of an airhead. Haru is well aware of Tsuna's status in the mafia, although she doesn't know the complicated details and dreams to one day become the wife of a mafioso. Haru loves children and can become very protective towards them, especially towards Lambo and I-Pin, and dislikes the idea of children being involved in the mafia. She and Kyoko excel at cooking and housework very well.
While she is shown to be kind and caring, Haru is shown to be assertive in comparison to Kyoko, whenever Haru believes that Tsuna or Hayato are doing something wrong she usually doesn't hesitate to scold them for their actions, and on certain occasions can lead to physical harm.
Haru has a fascination with costumes, which often lead to her changing into different costumes, which often bewilder Tsuna. She is also shown to be able to make dolls with her talented sewing skills.
According to Tsuna and Hayato, Future Haru has become more feminine, but her way of thinking is still the same.
- In the Reborn! Fandom, she is known as 86.
- In the Card Games, Haru is attributed to have Lightning and Cloud Flames.
- Yuki Funahara from Psycho-Pass resembles Haru, as both characters were designed by Akira Amano.
- Haru's catchphrase is "Hahi!" and she has a habit of saying "desu" at the end of her sentences. She also likes to refer to herself in 3rd person.
- Her name is the Japanese word for "spring".
- Haru hosts the Haru Haru's Interview: Dangerous at the end of just about every Episode from the fifth season to the first part of the sixth season. She seems unaware that Lussuria sometimes takes over the show.
- It was Haru who named Hibird (Hibari's bird).
- It is said that she is a member of the gymnastic club in her school.
- Haru's three most attractive features are her beautiful eyes (3rd), cute dimples (2nd) and for first is her whorl of hair, as told by Fuuta thanks to his Ranking Ability.
- Fuuta has also ranked Haru's favourite cakes, those being cheesecake (3rd), chocolate cake (2nd) and chestnut cake (1st).
- Haru is the second person to challenge Tsuna to see if he's fit to be a Mafia Boss. The first was Hayato.
- In her elementary school essay, she stated that her dream was to become Japan's best costume maker.
- She likes the cosplay/costume Namahage and is seen wearing it many times.
- In one of her interviews Haru is shown to love costumes, referring to Mukuro as her Cosplay buddy and asking on several occasions that he try on costumes she'd designed. Mukuro responds by running away and leaving Chrome in his place.
- In the female character popularity ranking published along Chapter 164, Haru ranks 3rd after Chrome and Lal Mirch .
- She seems to be jealous of Yuni, since Tsuna blushes every time Yuni smiles.
- During one of the Haru Haru Interview: Dangerous, she kept calling Chrome by the wrong name (including Cream Dokuro and crowbar). However, she said Chrome's name perfectly when Reborn showed her the picture of Chrome kissing Tsuna's cheek, but doing so while being upset with the picture.
- In the manga, she along with Kyoko was shot with the Dying Will Bullet by Reborn. This was taken out of the anime as it was unknown what flame Haru has officially, but in the DS game Fate of Heat II - Unmei no Futari, her Flame is Lightning.
- Character Songs Featured In: