Lynch was formed in 2004 when Reo (ex-Gullet) joined with Hazuki (formerly in Deathgaze) and Asanao in Nagoya, Japan.

[3][4] With Yukino (formerly in Deadman) as a support bassist, they released their first album on the label Marginal Works and toured nationally.

Lynch announced that Hazuki would not be participating in tour due to being diagnosed with "acute pharyngitis and laryngitis, accompanied by swelling of the vocal chords."

[10] In December 2013, Lynch went on their first Zepp live tour in Tokyo, Nagoya, and Osaka.

In November 2016, bassist Akinori was arrested for marijuana possession and subsequently decided to leave the band.

[11] The EP "Sinners" was released in May 2017, featuring guest bassists including J, Yukke (Mucc) and Yoshihiro Yasui (Outrage).

[15] In the middle of the COVID-19 pandemic in 2020, lynch carried out a beneficial campaign for the music venues of Japan with the single "Overcome the Virus".