"TRAIN TRAIN TRAIN" is a street office by five companies in creative field: audioforce, EDP graphic, WORKS, HAKUHODO Kettle Inc.,WHITE BRIEFS and digramlabo Inc.

Unlike ordinary offices, this office is an experimental office connected with the streets and various creators for co-creation. The building is a two-storied complex with a roof-top. There are cafe, bar, art space at the first floor, and shared space for TRAIN TRAIN workers and each company's booth at the second floor.