Hanako

Hanako (花子), real name Yugi Amane (柚木普) is a ghost haunting Kamome Academy's old building's third-floor female toilet, third stall.

Hanako governs over the Seven Mysteries as the School Mystery Number 7.

He is the older twin brother of Yugi Tsukasa. As Amane, he previously attended the Kamome Academy as a student.

Appearance
Hanako is a short boy with matted, choppy black hair and big amber eyes.

He wears a black gakuran with gold buttons, a white long-sleeved western shirt underneath, black shoes and red socks. The bottom of the gakuran shirt has red hems. He also wears a black hat with a gold emblem and red strings along the front seam to match his uniform. The underside of the hat is white. Hanako is often seen with and commands 2 white hakujoudai, with pink and blue circle markings respectively. Occasionally, he is seen wearing a matching long flowing black cape with gold and red collar and clasps, and a red underside.

On his right cheek is a white seal with 封 (seal) written.

As a human, Hanako was seen wearing the old Kamome Gakuen school uniform - a white short-sleeved shirt with black pants. He was often seen covered in bruises and bandages. There was a cotton gauze on his right cheek, similar to where his seal would be.

Personality
Hanako is cheerful and childish, he likes to have fun. He teases others and is kind of perverted, sadistic but kind. He is often shown smiling to mask negative emotions and can be described as a Stepford Smiler. Though he is always smiling at inappropriate times and seemed like he doesn't care about what was happening around him, his actions prove otherwise.

Hanako is the 7th school mystery and is the boss of the 7 mysteries. Despite his childish persona, Yako and Tsuchigomori seems to follow his orders and wouldn't want him as their enemy.

He protects Nene from danger, maintains the balance in the relationship between humans and supernaturals of the school, and is often seen helping others around. Hanako also has expressed a great deal of affection and concern for other individuals, especially his human companions, despite denying so. This is shown when he cheers Nene up with a kiss and when he chased around the school to find the Mokke's hidden trinkets, which included Kou's earring. He also opens up considerably with their company, confessing that his favorite dessert is donuts, which surprised even Tsuchigomori.

Kou has said that despite the rumors about him and his past actions, he cannot see Hanako as a bad supernatural as described by his older brother Teru.

Story
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Relationship
Yashiro Nene and Minamoto Kou

They first met when Kou challenged Hanako on the rooftop, threatening to exorcise him.

Upon hearing that Nene thinks that Hanako isn't a bad supernatural, Kou went to investigate it and decided that he couldn't see Hanako as a bad ghost as of now. Nene and Kou, both wanting to know more about Hanako, are 'partners' and searches for information about him.

Although he doesn't say it, Hanako is happy to have friends like Nene and Kou. When the two said they wanted to know about him in the 4PM bookstacks, he shyly admits that his favourite food was donuts. Although that wasn't a surprising secret, Hanako made a soft smile at Kou and Nene while they were discussing further on the kind of donuts he liked. Tsuchigomori said that it was an expression he didn't expect to see from the honorable number 7, and let the two students off for showing him something interesting.

After finding out about what Hanako looked like when he was alive, Nene had a hard time facing him. Hanako noticed that she was acting weird, not complaining about cleaning the toilets, refusing to look at his face, and being really quiet. Kou helped them by pretending to need help from Nene while making donuts, showing her a messy kitchen that was actually the work of Teru. After successfully making a batch, Kou made her go take them to Hanako, helping the two's relationship make up again.

From then on, they act more like a friend trio, concerning about each other and having fun together.

Yashiro Nene 

First meeting
Nene and Hanako have a trusting and caring relationship. After their fates were entwined due to the mermaid scale, Hanako made Nene into his assistant in return for granting her wish. She started cleaning the toilet after school. She complains about doing it and tells Hanako that she doesn't like it, but Hanako says he looks forward to it every day. He feels nostalgic, and it felt like having a friend. Nene then calls him Hanako-kun instead of Hanako-san for the first time, so that they're friends.

After seeing Hanako apologize to her while taking his hat off in the confession tree chapter, she thought he looked like any other normal boy and wanted to learn about him.

From then on, Hanako continues to save Nene from danger. Nene also wishes to learn more about him. Despite not being human anymore, Nene has called Hanako is her friend many times, which surprised others who are not fond of supernaturals. She also called Kou her partner in wanting to know more about Hanako.

She learned about Amane from the memories recalled after destroying Tsuchigomori's yorishiro. This made her care about Hanako and his past even more. Nene then tells Hanako that he was "more trouble than it's worth" but that she will stick around him anyway because she liked Hanako as a friend. In the next chapter, he thanked Nene, telling her that it was the first time a girl told him that she liked him, and opening up to her a bit more about his past. He finally told her a bit of his past. Nene thinks about how Hanako could have had a happy future, and Hanako also wishes for her to have a happier fate. They arguably have one of the most trusting relationships in the series.

Maybe due to fear of her finding out more or not being ready to tell her, he says that he will tell her more in the future and they made a pinky promise for her to stay as his assistant until that time comes. After the reveal of Nene's short lifespan, Hanako's actions towards Nene can be more clearly seen as his way of caring for her, despite him thinking there isn't anything he could do about it.

Amane meeting Nene
Nene later first met Hanako's past self, Amane, in volume 5 while going through the doors that goes to different dimensions and time.She was surprised, but immediately showed concern to Amane who is bruised and injured, dashing towards him and asking if he is hurt, asked if he was crying.

Although Nene first met Amane while time traveling to 1969, it is shown that Amane first met Nene in 1964, where she time travelled to during the festival she was attending with Hanako and Kou. Previously, Hanako showed to be a little jealous towards Kou, but failed to genuinely compliment Nene in her yukata. There, Nene met a younger Amane in the festival alone. Young Amane admitted to Nene that she was a bit of his type. Nene showed her concern about Amane's fate to the young Amane, telling him that shes always rooting for him.

In the end of the chapter, it was revealed that instead of wanting to be an astronaut, he wrote that he wishes to "meet Nene-oneechan again in the future". Aidairo later posted an image on twitter where they described the theme of volume 8 to be 'first love thief', implying that Nene was Hanako's first love. Minamoto Kou

TBA Minamoto Teru

As Hanako is one of (and even the boss of) the 7 mysteries, Teru intends to exorcise him. However, he decided to leave the case to Kou.

In Chapter 10, due to Kou hesitating to exorcise Hanako, he immediately took the case to himself and tried to exorcise him.

Like other supernatural, Teru sees Hanako with hatred, even go as far as to describe him as "self-serving and violent". After Kou's persuasion, however, he stopped attempting to exorcise him, leaving his case entirely to his brother.

Hanako is clearly afraid of him from that memory, which is shown when he avoids older Kou in volume 6 due to him having similar looks to Teru.

Tsuchigomori

Tsuchigomori is one of the supernaturals who had a past history with Hanako-kun. Tsuchigomori has been teaching in Kamome Gakuen since a very long time, living as a supernatural in the school. He was his teacher.

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Yako

Aoi Akane

Yugi Tsukasa

Tsukasa is Hanako's younger twin brother and the person he killed.

While Hanako feels considerable guilt over killing him, Tsukasa doesn't seem to bear any ill will towards his brother for it, though he doesn't hesitate to use it as leverage to manipulate the latter. He's always eager to meet up with Hanako, greeting him with huge smiles and hugs. He tells Hanako he loves him and asks to play together just like they used to. They have both been shown to react negatively to others interrupting their reunions.

The twins seem to have been close since they were young and often did activities together, such as watching TV and going to festivals. They are shown to be holding hands in a commemorative photo taken upon entering junior high.

As supernaturals, Hanako and Tsukasa have opposing beliefs - Hanako maintains the correct relationships between humans and supernaturals, while Tsukasa thinks they should just be however they want. In a conversation with Nene, Tsukasa describes themselves as being polar opposites and compares their current relationship to that of rivals or arch-nemeses.

Mokke

After "the Faeries" incident, Mokkes can be found following Hanako around, doing random tasks in the background. As Mokkes are petty thieves, Hanako has to return the missing items they've stolen from students, which includes Kou's earring.

According to Hanako's biggest concern, Mokkes keep beating him in the game of cards.

Abilities
Command of Hakujoudai

TBA

Number 7's Powers

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Trivia

 * His favorite snack is donuts.
 * Hanako plays the card game Hanafuda with the Mokkes.
 * His biggest concern is that he can't beat the Mokkes at cards.
 * Hanako likes cats, dogs, and rabbits. He thinks the mokkes look like rabbits.
 * Hanako is really into the shape of people’s fingers.
 * His ideal figure is to be a giant monster attacking the city.