THP-91 Super heroine in crisis! - ! - Vol.91 Keisou Sentai Secure Ranger Requiem for a kind-hearted monster Nanako Miyamura

Mira Kanda, also known as Secure 3, is the only red member of the Detective Sentai Secure Rangers who fight against the evil organization Despair. - Mira succeeds in preventing Despair's ``Dr. Shiraishi abduction plan'' based on information from a certain source. - A certain source...it's Kurt, a monster belonging to Despair... - Kurt works as Mira's informant in hopes of destroying Despair. - However, Geizra, an executive of Despair, realizes that there is a traitor within Despair and sets a trap. - Mira tries to prevent Despair's bombing plan based on Kurt's information, not knowing that it is a trap. - However, a monster suddenly appears in front of Mira...! - Will Secure No. 3 Mira Kanda be able to prevent the evil organization Despair from doing evil things? - ! - [HAPPY END]