9x9, also often stylized as NINE BY NINE (ไนน์บายนาย) and 9by9, was a nine-member project boy group under 4NOLOGUE. They debuted on November 9, 2018 with the digital single "Night Light". The group was formed as a project for actors to be in a boy group; The group disbanded on the last day of their final concert, EN[D] ROUTE, on March 9, 2019.