Let's be honest. The Bible can be pretty scary for a little kid. All sorts of terrible creatures and mythical beasts can be found in its pages. Dragons with numerous heads and horns, locusts with human faces, and horsemen that resemble the Grim Reaper are just some examples.
The purpose of this series is to represent all beasts from The Bible; being as faithful to the original source as possible, but in a cute, non-frightening way. Hence its slogan: "Turning scary, into cute".