"Mikakunin Chūgakusei X" (未確認中学生X, "Unidentified Middle School Student(s) X") is the 5th major single by the Japanese girl idol group Shiritsu Ebisu Chugaku.

It is to be released in Japan on November 20, 2013 by Defstar Records.

[2][3] The single will be released in three versions: Limited Edition A, Limited Edition B, and Subculture Edition (Regular Edition).

[3]