Shirakawa Haruka
Haruka 2015
Japanese 白河 ハルカ
Romaji Shirakawa Haruka
Personal Information
Status Private detective assistant
Age 20
Birthday April 10th
Likes Milk tea
Dislikes Bell pepper
Appeared in

Shirakawa Haruka is a recurring character in Logicalism categorized under the Kisetsu no section.


Haruka has short cream hair and dark green eyes. He wears a sweater of the same color and short green pants. His most notable feature is his missing right arm and the two clips (brown and green respectively). It's been told in a strip that he has a chibi kind of face despite being a 20 year old. Most of Haruka's costumes are either sweaters or vests.

As it's said that he uses PC often, from time to time Haruka would wear glasses.


Shirakawa Haruka came from a very wealthy family and was a child prodigy in the piano who'd won various competitions. He's the son of Shirakawa Kazuha and Shirakawa Kaho, and is the elder brother of Shirakawa Kaoru.

After the incident of the condo fire, Haruka lost his arm in the process of saving Kuromiya Akira, whom he recognizes as the girl who'd listen to his piano from time to time. With his arm gone, he refused to go back to return to his family. Haruka wanted to know who was the culprit of the fire.

He was later taken in by Mikami, and currently works as a private detective assistant under him along with Miyashita Hiro; who too was taken in by Mikami after the events of "Yuuhi Iro ni Somaru Nazotoki". Among the group, Haruka acts as a mother figure in the house.


Role in "Yuuhi Iro ni Somaru Nazotoki"Edit

In Yuuhi Iro ni Somaru Nazotoki, Haruka plays a rather minor role and is shown mostly talking to Mikami about various things along the story. After the events of the story, there was a new addition to the family (Hiro) and Mikami's office was later relocated.

Role in "Umi wa sono Nazotoki wo Nozomu no ka?"Edit

Haruka plays an important role in Umi wa Sono Nazotoki wo Nozomu no ka?. He and Mikami were invited to the cruise ship "Yotsuba" arranged by the Akatsuki group. They were given a 'letter' saying a crime will occur there. The murders (or 'mysteries') which were present in Nazotoki took place.

Haruka met various people on the trip, but mostly spent time with the other children who were on board: Akatsuki Mai, with her elder brother Akatsuki Makoto, and a friend of theirs, Nishimori Aozora. Aozora had long bangs which covered her eyes, and Haruka gave her his blue pin as a gift, something Aozora would be seen wearing often after the event. Haruka was also close to Kurono Miyako, who was gentle to him throughout the trip.

The murders then occur with Sato Keisuke being the first victim, followed by Murasaki Kojiro, and Takamatsu Mikaze. Mikami rounded up the other passengers to announce the deaths, and to wrap up the case. At one point, Haruka was thought to be the culprit because he had a possible motive. Mikami then cleared his suspicion by telling everyone their who the real culprits were. It was Miyako, with Keisuke as an accomplice.

The story ended with Keisuke's reveal and suicide. After the meeting was over, Haruka and Miyako had their last talk. She told him that Keisuke's suicide wasn't a part of the plan. She later pulled out a knife and committed suicide in front of him.

Role in "Kimi Hitori"Edit

Haruka and Sota were shown exiting a concert when the story started. It's hinted in the story that Sota may be envious of him. As the story progresses, Haruka helped Sota along the way as he searched for the girl Sota was looking for.

Role in "Nazokake" (Novel)Edit

In the novel adaptation of Nazokake, Haruka did not lose his arm during the fire incident and continued to become a pianist. He was hired to play during Yotsuba's cruise ship, where he met Len; who studied under the same teacher, Yamabuki Ayato in the past.

Along the story he talked to Rin often, as she was a fan of him.

Role in the ComicsEdit

Information Panel
Romaji Juunen Mae no Jiken (Haruka hen)
Featuring Shirakawa Haruka, Shirakawa Kazuha, Shirakawa Kaoru, Yamabuki Ayato, Kurono Miyako, Kuromiya Akira, Mikami,
Publish date October 2010
Continuity Sannen Mae no Jiken go (Haruka hen)
Comic haruka4

Haruka asked permission from his father to go and play at Ayato's place, but his father forbid him to do so. He didn't want Haruka to hang around someone who "makes vulgar music". Kaoru comforted him saying eventually their father'll open up and see how good Ayato is. Haruka said Kaoru's a good boy and he wishes he could create something like him and Ayato. Despite his father's warning, from time to time Haruka visits Ayato's place.

One night Kaoru caught him sneaking off to Ayato's place. He told Kaoru to keep it a secret from their father and left. Later that night, he realized that Ayato's house was on fire. Haruka saw a girl who ran inside, and managed to save the girl and shielded her.

Because of the incident, Haruka lost his right arm. At the time he wished that he could've just lost both of his arms; then he could've easily chosen to just die. Mikami had passed on his message to his parents, saying he didn't want to return to his home. Haruka thought no one wanted a musician with a missing arm.

Haruka changed the subject and asked who the arsonist was. He said he'd kill whoever set the fire when Mikami asked what he wanted to do to them. Mikami asked another question to him, saying "would he be able to kill me", and although there was a slight misunderstanding between the two, Mikami explained his point saying killing "him" would be harder than killing the arsonist. He'd tell him what he wanted to know, and Mikami would look after Haruka as well.

It'd been a while after Haruka moved in with Mikami and he still couldn't look at him in the eye. Mikami decided to wear a hat, saying he wasn't scary to look at anymore and that Haruka should call him "Papa". It turns out Haruka just didn't like looking at people's eyes in general.

Information Panel
Romaji Sannen Mae no Jiken go (Tetsuro hen)
Featuring Gin'ya Tetsuro, Natsuki Kori, Akatsuki Mai, Yamabuki Ayato, Shirakawa Haruka, Kohinata
Publish date August 2011
Continuity N/A
Comic haruka2

Haruka won first place in a certain competition one day and saw Ayato when it was finally over. He recognized Gin'ya Tetsuro who came second place and introduced himself; however Tetsuro later threw a tantrum and left.

Information Panel
Romaji Sannen Mae no Jiken (Haruka hen)
Featuring Shirakawa Haruka, Miyashita Hiro, Natsuki Kori
Publish date November 2010
Continuity N/A
Comic haruka3

When Haruka came home one day, Hiro told him that she was going to take the entrance exam for Nijinoha University. Haruka said it was really sudden, and suspected that the reason for her on entering was the cellist (Sota) she'd been talking a lot lately. It's said that Haruka was the main reason she wanted to join the music department.

Later, Haruka was taking a walk one day. Haruka then stopped someone he thought he knew (Natsuki Kori) when the two passed by each. Haruka mistakened her for someone else (he thought she was the girl who liked his piano), and immediately apologized for his action. In the end the two decided to share a small talk with each other. Haruka had to admit she was a bit of a chatterbox.

Information Panel
Romaji Haru to Aki (a)
Featuring Tamba Suzune, Kuromiya Akira, Shirakawa Haruka, Shizuru Sakunosuke
Publish date May 2013
Continuity Haru to Aki (b)
Comic haruka1

Haruka met Akira one day in a convenience store and he bought the last carton of milk for her. After saying it was dangerous for girls to wander off at night, he said his goodbye. He came back not long after however, to save Akira from a stranger. They exchanged names, and later their goodbyes.

Role in Naki Oukoku no PhantomEdit

Haruka (along with Hiro) will be the third person to join your party. You'll find the two of them after you've walked through the forest and go near the entrance of the town. There'll be a cutscene when you meet these two and after saving them from a red flower monster, the two'll join your group. Haruka mainly acts as a healer and a support in the game, for his attacks aren't very strong compared to the other characters.


  • His birthday parallels Akira's birthday; his birthday being April 10th (4/10) and Akira's being October 4th (10/4).
  • Haruka and Akira's names are also opposites of each other. Shirakawa having the character 白 (white) and Kuromiya having the character 黒 (black)
    • In addition to that, Shirohane Len, who plays 'Haruka's' role in the novel adaptation of Nazokake, also has the same character as his name.
  • Haruka's name is written in katakana (ハルカ), just like his brother Kaoru (カオル).
    • As Haruka's name is written in katakana, his name could mean many things. It could mean 'spring', which matches his birthday which is on April 10th. Or 'far / distant', which is used as a pun in the game "Harukana Aozora".
    • Haruka's name can be written as '春花', which can also be read as "Haruhana".
  • In February 2014's Valentine Event, Haruka won the most number of chocolates; along with Mikami. (a number of 161 chocolates / votes)
  • According to a "favorite Logicalism character" questionnaire in March 2015, Haruka wins third place.



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