The five best theories that open up Naoki Urasawa's Monster. The anime and manga leave a lot to explain and there's a lot of fringe theories out there. Some, however, are better than others and these are the best five out there.
Timestamps:
0:00 Introduction
0:33 All For Nina
2:26 Reuniting the Children
6:06 The Three Frogs Experiment
8:25 Johan Johan
10:51 Monster Nina
Other Links:
Curious about Another Monster?
• Another Monster: The Sequel Novel
More unsettling children's books from Monster:
• The Awakening Monster
Cheer, Cheer.