Tsuki wa Kirisaku: Tantei Sagara Kyouichirou

Kyouichirou Sagara is a third-rate private investigator who drinks more than he should. After a heavy night at a pub, he ends up in a room with a woman he met there. He comes to with fragmented memories and a serious new problem: an unfamiliar woman is dead on the bathroom floor. He is still working out his options when the police arrive at the door. He talks his way out of the interrogation room — it is one of the few things he does competently — and finds himself with a case that only grows more complicated the further he investigates.