Rescue Police Secret File

, simply called RPSF, is a 2018 book written by Tsuyoshi Nonaka, the apprentice of designer Katsushi Murakami. This book features original stories about Rescue Police living in 21st century, new items & weapons designed by Nonaka himself and interviews of multiple cast and crews of Rescue Police Series.
==Original Items & Weapons==
*WSP PFU-X04
*WSP SDFU-X01
*WSP SDOU-X03 Crawler
*SS-I 3DCU-X01
*WSP FT-02 Max Calibur Mark 2
*EDRT-078-X Tri-Jacket System for Space Activities
*EDRT-005-SX Turbo Unit WS
*SRS SG-WX01 Solgallop Double Acting Model
*WSP DD-X01 Deep Diver
*WSP DSTC-Type03 Deep Sea Transport Capsule
*SRS-HA 08X Omni Galer
*TOK-001S-LC Winsquad Ladder Custom
**Gap Ludder
**Sweeper
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