Yokohama's Number One Swimsuit Swordmaster

The Port's new executive: Katsushika Hokusai! Miss Oi, wielder of the Four-Sword Style, and, oh, her dad too. Anyway! Starting today, we're officially joining Yokohama's biggest organization! I get to wear gorgeous, elaborate Edo-style swimsuits and show off my amazing sword skills without holding back. My boss is a gorgeous red-haired big sister, there isn't a single person I hate, and the pay is more than satisfactory... All right! Oi really loves this place! Hm? The Armed Detective Agency? Whoa! You use a sword too? Not bad, not bad~ But you're still not as good as me! Dad and I are invincible with our Four-Sword Style! "Huh? Who are you calling a Demi-Servant? Oi is obviously a bona fide four-star Saber!" "! Hey?! You did it again!!!" "Damn it! Ability: The Great Wave off Kanagawa!" "An Edo girl speaks her mind and holds no grudges! Let's go, Dad!" A strange girl who refuses to admit she's a Demi-Servant, and has completely merged with the Heroic Spirit "Swimsuit Katsushika Hokusai," is ready to fight the Armed Detective Agency to the death again today~! (With one executive after another having run off, Mori is finally delighted to have a new recruit who can put up a good fight. The bald-pated Mr. Mori, so short-staffed he's nearly tearing his hair out, is overjoyed today!) Pairing: Dazai Set in the same world as Hiyori's Peach Blossom Paradise. A godsend for Mr. Mori, who's on the verge of dropping dead at his desk! Theme: Saving a boss who's worked so hard he's gone bald