Any%
Complete any ending as fast as possible. Any glitches can be used.
Devil Children - White Book
Devil Children White Book is the third game of the Devil Children series and a sequel to Black Book and Red Book. This version never got a PS1 version. 
Leaderboards See all the submitted runs on Speedrun.com
Speedrun History
Section titled “Speedrun History”- The first ever available recorded RTA speedrun of the Any% route, which completes the bad ending, was done by sioneus with a time of 3:31:01.
- The current world record is held by Fitsi with a time of 3:16:24
Categories
Section titled “Categories”True Ending
Complete the true ending as fast as possible. Any glitches can be used.
- Any% Bad Ending Guide by Fitsi
- Any% Notes by sioneus
Resources
Section titled “Resources”- atwiki - japanese wiki with plenty of information