2310, a strange object from outer space to fall down to Earth, carrying with these weird creatures. Since the day they appeared, they have done the carnage all over the surrounding area and are on the momentum spread out all over the world.

If you think that is the worst thing had happen to this world, then you are totally wrong...

Right after the monster came, the rebels insurgency, and rioting happens everywhere around the world. 

Be aware of that, an organization has founded. It's called the S.P.P (atually it nothing special about it... ugh...)

The organization main mission is to protect the humankind from the 'monster'. On the other hands, they have to deal with those rebels who called themselves as 'S-RTAN'. 

After 100 years fighting with the monster and the rebels, the new an unexpected incident suddenly appeared. The rebels somehow united with the 'moster form outer space'