Cartagra: Disease of Moon Confusion

Shugo Takashiro is no closer to finding his missing first love, Yura, but the er in Ueno has taken another victim: Otoha, a courtesan from the same brothel he's staying at! Now it's personal, and Shugo resolves to track down the killer, but there are few clues to go on. When busty blonde schoolgirl Takako sneaks Shugo into her dormitory to take her virginity and make her cum, the detective has no idea that it will give him the lead he needs to find the killer...if the killer doesn't find him first!