Ameku Takao is a genius doctor with a knack for solving all kinds of difficult cases. When a man with blue blood is brought to Tenikai General Hospital—where Takao is the vice-director—after having his leg bitten off by a large beast, she starts investigating the intriguing case with the aid of her colleague, Takanashi.

Takao comes to the conclusion that the "large beast" responsible for severing the man's leg was, in fact, a Tyrannosaurus Rex. Following this shocking deduction, the case rapidly develops, and she and her crew head to the place where they hope to get answers to the remaining mystery of the victim's blue blood.

Takao's diagnosis seems to solve Enzo's Curse. However, due to a mysterious death by fire, the investigation is right back at square one.

Despite another occurrence of the mysterious spontaneous human combustion phenomenon, the suspect arrested denies any involvement in either case.

Takao tries to clear Seiji's name before he is arrested by the police.

The mystery of the drowned man is revealed.