TMS Entertainment partnered with Seibu Railways to produce the original anime series Dededen, which commemorates TMS Entertainment's 50th anniversary and Seibu Railways' 100th anniversary. Remarkably, TMS Entertainment's studio is located near the Araiyakushimae Station on the Seibu Shinjuku Line. The anime chronicles the daily activities of the protagonist Amoru Tokorozawa and the railway. TMS intends to create five 75-second episodes, all of which will be showcased on SmileVision screens onboard the train and Smile StationVision screens at major stations from February 23 to December 31.