قسمت 225: رینتارو گروه کارآگاهان نوجوان را برای تحقیق درباره یوجی کاماکورا، کارمند جدید و مرموز رستوران خانوادگیش استخدام می‌کند.

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A boy named Rintaro asks the Junior Detective League to investigate on a strange man named Yuuji Kamekura. Rintaro explains that Yuuji appeared one day at his family restaurant claiming he owes Rintaro's grandfather a favor and would like to work at the restaurant. Yuuji soon after begins living with the family and helps them improve the restaurant to the point the family are constantly busy with the customers. The Junior Detective League investigate and all but Conan are convinced Yuuji is planning to dig a tunnel into a store to steal merchandise. The Junior Detective League learn from a manager of a jewelry store that a robbery occurred five years ago and the thief was never caught. The Junior Detective League deduce that Yuuji plans to dig up the jewels he buried five years ago from the robbery under the restaurant which was under construction five years ago. Conan denies the absurd deduction but gives in when Haibara tells him Yuuji is a very simple person unlike previous criminals that he has been up against. The Junior Detective League manage to catch Yuuji digging up for jewels and he admits to his crime. Haibara shows up saying she called the police and the Junior Detective League ends up receiving letters of appreciation from the police for their help in solving the jewelry robbery case. Conan remains unsatisfied saying that his brain should be used to solve more complicated than this case. (Source: Wikipedia)