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In the year 2×19, the last of the “dragons” have banded together and taken the form of humans. A group known as Nine is after the dragons’ power. To combat Nine and protect the dragons, the police create the Special Crime Investigation Unit – Special 7. Seiji, a bright and knowledgeable rookie, joins Special 7 and is tasked with solving cases about Nine, alongside his unique new teammates.
Alternative Titles: Keishichou Tokumubu Tokushu Kyouakuhan Taisakushitsu Dainanaka: Tokunana, Special 7: Special Crime Investigation Unit, 警視庁 特務部 特殊凶悪犯対策室 第七課 -トクナナ-