In 2005, many children mysteriously disappear. This event is known as the 'Reasal Phenomenon.' A few children return with tails on their behinds. One of them is Hana Yamaguchi. Hana gathers children with tails and forms the 'Macro Cosmic Invincible Legion of Kids.' These children can travel freely between worlds, and using these special powers, they rescue the missing children. However, the Ali Troops then invade this world. This is a fascinating SF drama about the wonders of the universe.