One of the main girls around the office is Natsukise Youko. Not only is she Kojirou’s assistant, she’s also his childhood friend. She’s quite helpful around the office, but not very useful on the case. Calling her an airhead would putting it mildly, but sometimes the wild ideas she gets are precisely the clue that’s needed.
Youko is voiced by Katakura Hina, a voice actress who’s featured in over 140 different roles including Geronimo in Eiyuu Senki, Sawashiro Nanako in Kara no Shoujo 2, and two others in Boob Wars 2.
Reina is voiced by Konoe Yuzuko, a voice actress who’s featured in over 64 different nukige from a variety of brands.