Being a spy isn't that hard, ......right?

The normal boy Isetaki Futsume just wanted to buy something late at night, instead, he saw a spy, from a group, that isn't even known to goverment of japan.

NOBODY, otherwise than the spies should know about the group.

Isetaki has two options: he could join and become a spy, or die.......you can guess what he picks.

Thats how his journey begins!