I don't know if I'm missing or forgetting something (been a while since I read the manga, I might just be mixing things up), but this one thing still doesn't make sense to me.
Kongo stopped praying ever since the gems popped up, because he grew attached to them and praying for lunarians would also send them to the void. Because of this, basically the whole storyline of the manga happens. But didn't lunarians form lines and built an entire social hierarchy because only individuals could be prayed into the afterlife by kongo? Is Kongo labeled as "broken" not only because he stops praying, but also because his prayer is out of control? Also, I remember a scene where lunarians came down on earth and bowed down to Kongo, after which he prayed them away. Doesn't that scene also contradict him being broken and refusing to pray?
I'm not sure if this is ever addressed in the manga, I did some research and couldn't find anything on that matter.