19-year-old private detective Rena is assigned to train the clumsy new hire Sato.

Rena attends a Mystery Kiss event to see if Yuki remembers her.

Rena pays a visit to Donraku and Kabasawa; Sato tries to tail Dobu to get his stolen photos back; he gets caught in the process.

Rena continues to try and uncover the secrets behind Mitsuya Yuki.

Rena starts working at the same cabaret club as Imai to try and learn about Mystery Kiss's history.

Rene finally gets a chance to talk to Mystery Kiss in person at the audition and asks about Mitsuya Yuki, but her probing questions catch Yamamoto's attention; Odokawa enlists Dobu's help to rescue Kakihana.