The Japanese voice actresses for the four main characters in Bushiroad's Tantei Opera Milky Holmes game and anime franchise will appear at the Hyper Japan event in London on October 2. Suzuko Mimori, Sora Tokui, Mikoi Sasaki, and Izumi Kitta will hold a performance on the event's main stage in the afternoon.

Milky Holmes centers on four girls who want to be great detectives. They are named after fictional detective characters such as Sherlock (Mimori), Nero (Tokui), Hercule (Sasaki), and Cordelia (Kitta). They have a special power called "TOYS" and use it to fight and capture criminals. The anime will premiere in Japan in October.

Hyper Japan will take place in London from October 1 to October 3.