After fooling with the lawyer from the previous chapter, Sakurai finds her new prey while on the train. And he just so happens to be her sisters boyfriend! She reels him in with panty shots, then lures him to a love hotel to test and see just how much of a pervert her sisters boyfriend is. Frustrated with how uptight (and flat) his girlfriend is, he ends up falling hook, line and sinker.
Meet Sousuke. He's just your average high school kid, living in a rural town. Ever since his father remarried when he was young, he's been living together with his little sister Nanaru.
Together with his childhood friend Maho and their other friends, they have fun geeking out in the Otaku Club.
Sousuke enjoys those tranquil, peaceful days... But then one day, only one month before summer break, that peace is shattered.
That is the fake name assumed by a young military officer from the United Provinces of Japan. He has been tasked with infiltrating Tenshudo Academy, located in Special District Morino, impersonating a transfer student. He is to cast aside his former identity, and 'become' Toubu Kaito. Special District Morino, also known as the neutral zone, is a region of historical significance, and right now, it is the one area which 'both Japans' have their eyes on most.