Koki (Shison Jun) and Mankoto (Kishii Yukino) spend the night together. However, Koki acts as if nothing happened, leaving Mankoto in a quandary... Meanwhile, the two receive reports of a "black raincoat man" who is believed to be the culprit in the Eye of Horus murders. Mankoto realizes that a certain pattern has been hidden in the previous crime scenes, and the location of the fifth crime emerges...! Meanwhile, detective Masanori (Shirasawa Jin) becomes increasingly suspicious of Koki... As their romance develops rapidly, Koki's past is finally revealed!!