Zone (stylized as ZONE) is the debut extended play (EP) by South Korean singer Jihyo of the girl group Twice. It was released on August 18, 2023, through JYP Entertainment and Republic Records. The EP contains seven tracks, including the lead single "Killin' Me Good" and six other tracks written and composed by Jihyo. There no photocard just photo album, inclusions (stickers, bookmark, big poster, and etc.) and CD.