Akechi agrees to accept Kobayashi as his assistant if Kobayashi can find the killer .
Later , Kobayashi and Hashiba visit Akechi , where Kobayashi asks to be his assistant .
Akechi agrees to accept Kobayashi as Kobayashi assistant assistant Kobayashi Kobayashi can find the killer .
Later , Kobayashi and Hashiba visit Akechi , where Kobayashi asks to be his assistant .