IntroductionEditThis page is going to explain who Sumiko Kobayashi is.
Sumiko Kobayashi is the classroom teacher for all the members of the Junior Detective League . She claims herself that she is the 'Leader' of the Junior Detective League . She is deeply in love with Nicholas Santos from the police force. So far, Santos , Takagi , Sato and Sumiko are the only ones from the police force to fall in love. Chiba has fallen in love but they haven't 'introduced' each other yet.
Sumiko Kobayashi looks alot like Miwako Sato without her glasses.