OnlyOneOf (온리원오브) is a South Korean boy group formerly under 8D Entertainment. The group consists of KB (규빈), YooJung (유정), JunJi (준지), Rie (리에), Mill (밀), and Nine (나인). Originally as seven (Love (러브) departed on August 2, 2021), they debuted on May 28, 2019 with their first mini album dot point jump, with the title tracks "time leap" and "savanna". The group left 8D Entertainment on October 30, 2025, at the contract expiration.
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