Hirajima Natsumi, Okada Mei, Hazuki Himari, and Negishi Ai arrive at a luxurious beach house. Soon after arriving, they are informed that they will be competing in a series of challenges, the overall winner of which will be deemed the "center" of Merm4id. These challenges are interspersed with gravure-type segments that feature all four unit members. Challenges include guessing what sports each member played in school, cooking omurice, drawing logos from memory, guessing smoothie flavors, a capture-the-flag game involving inner tubes, and guessing items related to their D4DJ characters through touch.
Sorry, but for now we weren't able to find movies like Merm4id from D4DJ "Summer Flower Love Dream".