“I look forward to seeing you again in twenty years.”¹⁾
– Takahiro Karasawa²⁾

The HaseKara Uproar (ハセカラ騒動, HaseKara Sōdō),³⁾ also known as HaseKara (ハセカラ), was a series of events on 2channel's /livejupiter/ board that began on March 7, 2012, involving a teenage tripcode user and his incompetent lawyer. It would later spawn 'Koushinism'.

Ryota Hasegawa (長谷川亮太, Hasegawa Ryōta, born April 20, 1993), also called 'Chinfe' (チンフェ),⁴⁾ is a former /livejupiter/ tripcode user, then named Taichi Yagami (八神太一), who found 2channel through a Yu-Gi-Oh! board⁵⁾ and started posting on October 13, 2009.⁶⁾ He was mostly some otherwise unremarkable 16-year-old nuisance until he decided to share his academic acceptance letter on March 7, 2012.⁷⁾

The users immediately doxed him.⁸⁾ At first, he acted unfazed,⁹⁾¹⁰⁾ then took a bath,¹¹⁾ and finally dropped the tripcode.¹²⁾ However, the damage was done and fellow peers at Kokushikan University overheard that he would hire a lawyer with ¥300,000 in hand.¹³⁾ Hasegawa has since fallen off the radar, but people still prank his parent's home, the 'Chiba Kenma' (ちばけんま) in Matsudo.

Takahiro Karasawa (唐澤貴洋, Kawasawa Takahiro, born January 4, 1978) is a lawyer that would represent Hasegawa in Tokyo District Court and filed deletion requests on 2channel,¹⁴⁾¹⁵⁾ disclosing some IPs, but users stopped taking him seriously after seeing that his Twitter account was mostly spam,¹⁶⁾ followed too many junior idols,¹⁷⁾¹⁸⁾ then he made a very unusual decision to go after slander of *himself*.¹⁹⁾

As a consequence, their focus shifted towards Karasawa and the 'Koushin²⁰⁾ Law Firm' (恒心綜合法律事務所) in Gotanda. They have since moved to Minato, rebranding to 'Law Firm Cross' (法律事務所クロス) in 2015 and 'Law Firm Steadiness'²¹⁾ (法律事務所Steadiness) in 2018. Curiously, the firm had been representing NTTEC in the legal feud between Hiroyuki Nishimura and Jim Watkins.²²⁾²³⁾

Yuta Suzuki (鈴木悠太, Suzuki Yūta, born July 2, 1988), or Yuyu-uta (ゆゆうた), is a content creator that was known for crude songs and Rei no Are content. He remixed the defecating lawyer's theme and added lyrics in 2017,²⁴⁾ but performed it for a live audience with the Kanto Sound Project on January 10, 2020,²⁵⁾ and this upset the Koushinists since it could possibly detract from their goals of slandering Karasawa.

Over the following months, they were able to dox his apartment, the deliveries began, and users kept making bogus threats in his name.^26)27)28) Complying with their demands, he would apologize for this and removed videos of the song,²⁹⁾³⁰⁾ but he technically didn't remove all the videos, so the harassment would continue until November 22, 2020, then it eventually ceased by April 1, 2021.

Koushinism (恒心教, Kōshinkyō) is a movement and joke religion, inspired by an Unsolved Cases special on Aum Shinrikyō,³¹⁾ that gives Karasawa the rank of 'sonshi' (尊師, lit. “guru”).³²⁾ Their primary goal is to keep the flames going, hurt his public image by bringing up his various misdeeds,³³⁾ and occasionally visit the 'holy lands' with a tie to Hasegawa or Karasawa, mostly being a nuisance to them in general.

• Bad Potato (悪芋, Waruimo) - A criminal or extremist. It's actually a typo of 'bad friends' (悪いもの達, waruimono-tachi), so 'potato' (芋, imo) later became shorthand for Koushinist factions.
• Foreskin People (包皮民, Hōhi-min) - Derogatory term for Hasegawa defenders, referencing his phallic nickname of 'Chinfe', but it later became the catch-all term for 'anti-Koushinism' over time.
• Generic Man Defecating Series (一般男性脱糞シリーズ, Ippan Dansei Dappun Shirizu) - This is the MMD recreation of the 'Takahiro Karasawa Defecation Series' (唐澤貴洋脱糞シリーズ) kopipe.
• “I'll kill Takahiro Karasawa” (唐澤貴洋殺す) / KaraKoro (カラコロ) - An empty death threat³⁴⁾ that had became a game of chicken as people would get arrested and taken to court for it.
  • “I'll kill the lawyer, Takahiro Karasawa, by repeatedly stabbing him with a knife.” (唐澤貴洋弁護士をナイフでメッタ刺しにして殺す) / KaraName (カラナメ) - A longer and more verbose variant of the phrase.
  • “What color is the sky?” (空は何色か) - Karasawa's cheeky poem to people who make said threats, notably saying they'll see them again in 20 years, the approximate sentence for doing so.³⁵⁾
• Incompetence (無能, Munō) - The personality traits of Hasegawa and Karasawa.
• Nuclear Weapons (核兵器, Kakuheiki) - Your hostname would be automatically revealed if you post either target's real name on 2channel. One of the users apparently used a proxy in Pakistan, a state that possesses nuclear weapons, so users joked that Karasawa had nuclear weapons.
• Pakaben (パカ弁) - A lawyer that specializes in 'de-anonymizing' users. The term is a portmanteau of 'pakapaka' (パカパカ), an opening sound in this case, with 'bengoshi' (弁護士, lit. “lawyer”).
• Talking about yourself (自分語り, jibun katari) - This is mostly an issue with underage kids since they usually feel a need to talk about themselves, despite lacking real-world experience.
• Tōshoku (当職) - An uncommon first-person pronoun that is typically reserved for lawyers, but the Koushinists have also adopted it because it's funny.

• Hasegawa's final tripcode was ◆YAGAMI99iU (#_ｲ~7G6LL). A list was compiled on this page.
• Their sideways ( (c ：; ]ミ kaomoji is called the 'Yoko Sonshi' (横尊師, lit. “Horizontal Guru”).
• In 2011, Karasawa was likely trolled into buying the 2ch Viewer,³⁶⁾ prior to him taking Hasegawa's case.
• For curiosity reasons, 'Takahiro Karasawa' is read as 'Tángzé Guìyáng' (唐澤貴洋) in Chinese.

• Rei no Are

• Takahiro Karasawa Wiki (Mobile) - This wiki details information on Hasegawa and Karasawa as the NanJ Wiki isn't allowed to house it. You can also find stuff related to Koushinism as well.
  • Koushin Chronology - A timeline of the HaseKara Riot and Koushinism. Bold is major events.
    ■ is Hasegawa, ■ is Karasawa, ■ is Karasawa's office relations, and ■ is Yuyu-uta and the KSP.
• Russia Bulletin Board (Article) - The Takahiro Karasawa Bulletin Board. This board has had a lot of names and owners, which can be seen in this article here.