The HaseKara Uproar (ハセカラ騒動, HaseKara Sōdō),3) also known as HaseKara (ハセカラ), were a series of events that began on March 7, 2012 which involves a tripcode user on /livejupiter/, his incompetent lawyer, and it later spawned a parody religion called “Koushinism”.
Ryota Hasegawa (長谷川亮太, Hasegawa Ryōta, born April 20, 1993), also called “Chinfe” (チンフェ),4) is the former /livejupiter/ tripcode user who named himself, Taichi Yagami (八神太一), and started posting on October 13, 20095) after discovering 2channel from a Yu-Gi-Oh! bulletin board.6) At the time, he was a 16-year-old high school student, but ended up becoming a narcissistic nuisance to /livejupiter/.
Two years later, he shared his academic acceptance letter on March 7, 20127) triggering the events that led to his dox.8) He acted unfazed,9)10) until he took a long bath,11) and dropped his tripcode to avoid roping in his family and friends,12) but the damage was done. Later, fellow students at Kokushikan University heard that he was going to hire a lawyer with 300,000¥ (≈ $3,000) in hand.13)
After the lawyer stepped in, Hasegawa fell off the radar since Karasawa was more fun to mess with. Several photographs suspected to be him surfaced, but he likely graduated after 2016. His current whereabouts remain unknown, but people will still visit his parent's house, the “Chiba Kenma” (ちばけんま), in Matsudo, Chiba Prefecture, Japan. This location has notably been censored in Google Street View.
Takahiro Karasawa (唐澤貴洋, Kawasawa Takahiro, born January 4, 1978) is a lawyer that had infamously represented Ryota Hasegawa in Tokyo District Court. He filed a deletion request on 2channel and had some IPs disclosed,14)15) but this didn't actually mean anything. The users shortly discovered his Twitter and made fun of it, as he spammed his business16) and followed too many junior idols.17)18)
By late April 2012, he left his client and started focusing on getting slander of himself removed, which didn't work and he became a laughingstock for it. This inadvertently caused the focus to shift onto him and the “Koushin19) Law Firm” (恒心綜合法律事務所) in Gotanda. Additionally, since he was tricked into buying the 2ch Viewer back in 2011,20) this also meant he was a doxing victim of the subsequent 2013 leak.21)
In 2015, the law firm would rebrand to “Law Firm Cross” (法律事務所クロス) in Minato, Tokyo and notably represent 2channel's new owner NTTEC,22) despite their role in the 2013 leak,23)24) weaving an interesting legal feud.25) In 2018, the law firm rebranded to “Law Firm Steadiness” (法律事務所Steadiness)26) and moved to a different building in Minato, then he started a YouTube channel in 2019.27)
Yuta Suzuki (鈴木悠太, Suzuki Yūta, born July 2, 1988), or Yuyu-uta (ゆゆうた), is a content creator and musician who makes Rei no Are content and writes crude songs. For Koushinists, he remixed the defecating lawyer's theme and added lyrics.28) Then on January 10, 2020, Yuyu-uta collaborated with a community band and performed the aforementioned song in front of a live audience of roughly 400 people.29)
However, the Koushinists reacted negatively, viewing it as a publicity stunt they were monetizing off of,30) so he fled to YouTube.31) On May 14, 2020, the Koushinists fully doxed him and offered an ultimatum: remove every video with the song32)33) or keep having threats made with his name.34)35)36) While slow, he did comply with all of the Koushinists' demands by April 1, 2021, ending the conflict.
Koushinism (恒心教, Kōshin-kyō) is a parody religion that views Takahiro Karasawa as the “Sonshi” (尊師, lit. “Guru”), the highest rank of Aum Shinrikyō (now “Aleph”), and this roughtly emerged after the NHK aired a special on the cult on May 25, 2012. The religion's main goal is to blame everything on him, keeping the drama alive, and visiting the numerous “holy lands” related to Hasegawa or Karasawa.