All The Frogs Are Our Weekend, yo ishikawa (GROUP), hanauo, oono yuuki

Started in February 2006, Nana Hari ( 七針 / .ftftftf. ) has been offering its space as a showcase for painters, sculptors, photographers, illustrators, musicians, dancers and many other types of artists to present their works to the public, especially to the other artists, and encouraging mutual support and information exchange. The activity is briefly following the principle of alternative space or artist-run initiatives, yet has been reforming to confront the present scene. 

3 minute walk from Hatchobori station on the Hibiya line.