The case is linked to Shinobu's Omiai partner. He is the possible successor of a large company but at the day of their Omiai the old president was found dead. Somehow, Shinobu's Omiai partner seems suspicious... Shindou, the young police officer, acts jealous upon hearing that Shinobu has an Omiai and tries hard (with the help of the boys) to interfere. Also, the plot develops a young love between one of the boys and his classmate.