Shinshu LOOSE was originally founded for the first All-Japan Mixed Ultimate Club Championship, which was held in 2013. In the tournament, Shinshu LOOSE lost the game for a spot in the World Ultimate Club Championships in Lecco. Since then, Shinshu LOOSE became serious about winning a spot in the next All-Japan Mixed Ultimate Club Championship in order to grab the chance to participate in the 2018 World Ultimate Club Championships.
Originally, all of the members were from Shinshu University LOOSE, or its graduates. Needless to say, you can imagine that Shinshu LOOSE was named after Shinshu University LOOSE. Nowadays, however, some members joined the team who are not from Shinshu University LOOSE, but are connected with Shinshu area.