After years on the fringe of society, Panties finds himself in the middle of a conspiracy when he successfully hacks into Kondo's phone and learns the truth behind Careless Monday.

After finding out Mr. Outside's true identity, Takizawa learns that those responsible for Careless Monday are planning an even greater attack - but the most disturbing revelation concerns his missing memories.

As missiles fill the skies above Japan once more, Takizawa must rush to prevent a catastrophe far greater than Careless Monday. He has the resources - but does he have enough time?