Sourin is a solo project of Tomoya Matsuura, formerly of monocism and Nels. Sourin's earliest known release is "Sourin 1", a three track album from Quince Records in 2011. In 2014, Sourin appeared in Manual's compilation Memory and Matter. His next release, Sourin - 宗凛 was self-released on Bandcamp on September 10th, 2015. Bandcamp: sourin.bandcamp.com