Ryoko's Case File

Superintendent Ryoko Yakushiji and her subordinate, Assistant Inspector Junichiro Izumida of the Tokyo Metropolitan Police Department, launch an investigation after they witness a man waste away from rapid muscular atrophy.

While investigating the series of mummifications, Superintendent Yakushiji survives an attempt on her life by a cult member who claims that the deaths were necessary experiments to achieve a divine purpose.

It is Assistant Inspector Izumida's day off and Yakushiji impatiently bides her time.

A series of gruesome murders occur within the vicinity of a park.

During transport, a minor traffic accident alters the defense systems of an anti-terrorist security robot and causes it to malfunction and go berserk, killing several security guards.

Superintendent Yakushiji, Izumida, and her newly arrived maids, Marianne and Lucienne, investigate the appearance of a giant salamander within a secret gaming resort for corrupt politicians beneath the Greater Tokyo Area.