In a new age of space, the space colonies is desperate seeking independence with an importance figure piece lead in the middle. Some of the earth's biggest organization saw this as a threat as it will lose control of their resources in Mar, because of it she in danger of been uses as a Martyr to break any hope of independence. But others want her alive, for a better future.

Venn have enough trouble to hide his fame as a guardian as "Guardian Wing" after the event three years ago with his friends, but now he have to save the system again. This time with a unexpected start. Oc X Emilia