Episode Title:
The Combined Ninjas, Giant Demon Man.
Episode Description:
In the Jupiter mountains, there are ruins of a fortress which is said to have been erected by ninjas of ancient times. Some strange corpses are found. Nambu charges Jun, who is familiar with this region, with the investigation. Jun has found Jinpei in the Jupiter mountains. It was decided that this day would be Jinpei's birthday and it has been celebrated ever since. Despite that, Jinpei is in a bad mood that Jun has gone away this year because of the investigation...
