So many nice things about volume 18. Giving the reason why Oz got dropped into the Abyss is the best part since it was the most important thing since the beginning. Plus, you get the bonus explanation about immortality.
But let me forget all the darker stuff in the volume because this was so cute.
The situation in this series is impossible if you consider the birth rates in Japan.
Of course, as a fictional situation, this series is intriguing because it showcases why and how the law can be both good and bad. This volume is showing more of a radical opposition which I really like.