A few days after the murder of Shota Himuro (Tsubasa Sakiyama), a detective from the Second Organized Crime Countermeasures Division. Former police officer Ryusuke Iwase (Kanji Tsuda) is attacked by someone. Satoshi Itomura (Takaya Kamikawa) rushes to the scene and finds a small folded paper crane where Iwase had collapsed.
During his lifetime, the deceased Himuro pursued a dark website organization called 'Mole' that illegally traded insider information. Kento Shibuya) continued to investigate. Sawamura was found burnt to death on the river bank half a year after the incident, but Iwase seems to have doubts whether the corpse was Sawamura himself. Since Himuro and Iwase have been in contact recently, Itomura and the other members of the Special Investigations Office speculate that the culprit who attacked them may be the same person, and that person may be the earth dragon.