"3-2" (さんひくに) is the 13th single by the Japanese idol girl group HKT48.

The choreographic center is performed by Hirona Unjo.

[1] The single was ranked first regarding the first week sales based on Oricon and Billboard Japan Hot 100.

The announcement of single releases was streamed through the group official SHOWROOM channel on March 7, 2020.

Meanwhile, the track list of the single was announced a week later.