Angry mask counterattack

Omoikkiri Detective Team Hardgumi – Season 1

The Hadogumi group is in danger due to the mysterious kidnapping group, the Darkness Clan. The Dark Clan's goal was to find a boy with the perfect talent and have him rule the future of Japan and eventually the Earth. The family is finally deciding on a prestigious successor through a selection test. Hiroshi and his friends were also made to participate in this test. What will be their fate?