The chant comes from the opening of My Deer Friend Nokotan, the 2024 anime adaptation of Oshioshio's manga about a former delinquent who befriends a girl who is secretly a deer. Its repetitive title lyric quickly became a viral dance and sound on TikTok and other short-form platforms in summer 2024, where users mimicked the hand gestures and deer-like movements. The clip remains popular because the rhythm is easy to recognise, easy to lip-sync, and instantly signals the show's cheerful, surreal humour to anime fans.