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Adri and Jaka are the school detective duo. They have solved many cases. From trivial cases to cases that they think are serious... However, a mysterious event occurs again at the end of their study period in grade 3. Based on Adri's hypothesis, a teacher is involved in it. Adri and Jaka are back in action risking their intelligence and self-esteem, even their friendship...

(Source: Official synopsis, translated)