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If you are confused after watching HDnG's debut music video several times, don't worry. Courtesy of HDnG and MCsL, we will introduce you to the story hidden in the video.

However, we will start from the beginning. The concept of the group is based on the story of four boys who lived among 100 inhabitants whose lives tragically ended in a dystopian dimension known as Ri. The four boys remain shadows on the cards, but they will make it out if they solve the mystery of who they were before.