Group B-5

Group B-5 are the main protagonists of the series. They were sent on a school trip to the planet McPa, but ended up lost in space for 146 days after being sucked into a wormhole. While they don't all get along too well at first, during their nearly 5 months stuck in space together they become a lot closer, and are still shown to be friends 7 years later.

Members
 * Kanata Hoshijima
 * Aries Spring
 * Quitterie Raffaelli
 * Funicia Raffaelli
 * Zack Walker
 * Luca Esposito
 * Yun-Hua Lu
 * Charce Lacroix
 * Ulgar Zweig