Miss Monochrome wants to investigate the differences between her and Kikuko, the idol of nationwide fame. Miss Monochrome and Maneo turn detective and practice tailing targets and deductive reasoning on the street corner, then begin to do an undercover investigation of Kikuko's working site.
Detective rule number one: 
act natural when tailing.
:قاعدة المتحرِّي رقم 1 
تصرّف بشكل طبيعي أثناء التعقُّب
Detektivregel #1: Wirke möglichst
natürlich bei der Beschattung.
Regla para detectives número 1:
Regla para detectives número 1:
1re règle du parfait détective,
rester indifférent lors d’une filature.
Regola dell'investigatore numero uno:
 essere naturali quando si pedina.
Primeira regra dos detetives: aja 
naturalmente ao seguir uma pessoa.