M4

M4 is an idol unit comprised of the top four students of Four Star Academy's male division.

Members

 * Subaru Yūki/Kamen Rider Den-O Super Liner Form
 * Nozomi Igarashi/Kamen Rider Den-O Vega Form
 * Two Unnamed Members

Trivia

 * This is the first male idol unit in the entire Aikatsu! franchise.