Keitaro decides that he , Takumi and Mari should investigate a prowler in the area .
Mari is summoned to the Smart Brain building where Mari and Takumi are invited to a dinner with Kyoji Murakami , the new head of the company .
Keitaro decides that he , Takumi and Mari should investigate a prowler in the area but Mari is summoned to the Smart Brain building where she and Takumi are invited to a dinner with Kyoji Murakami , the new head of the company .