The AU event featured a murder mystery revolving around the victim, a wealthy man named Mr. Rockfelt. For each drawing made, you received a clue regarding the crime and the culprit. Here are series of those drawings of Kamui investigating with other characters.
First two are with April, a gloomy vampire girl who lives alone in a mansion.
The third is with Gregorio, a fellow vampire who first turned Kamui into a vampire. (looks younger than Kamui)
The fourth is with Wui Tao, a female drug distributor with a single arm whom Kamui frequents often to satisfy his drug needs.
The last is with Eric, an imposing man who appears to be a philanthropist but his true identity is a mafia boss.