Produced as a welcome movie for TOKYU KABUKICHO TOWER HOTEL GROOVE SHINJUKU. A geyser erupted on “Shinjuku Island,” the sleepless island floating in the middle of the eastern sea. Ichiro and Futako, born together with the column of water, set off to explore the island with unstoppable momentum. Glittering signs, ultra-fast conveyor-belt sushi, towers of cocktails, and so many things they have never seen before! People and the city undulate like a roller coaster, creating one groove together.