I forgot this flashback was Henri explaining his past with her wife.Add to that the fact that he is talking to his daughter. I highly doubt that the nitty gritty details of everything in between would be fitting the conversation.
I'm gonna bet that valley monster baby became something along the line of blood-bound familiar on human blood steroid.Remember, Iruma has been wounded before and bled in front of a demon before.
Not the demon beast bird thing from one of the early arcs, but, the little shop keep guy. He intentionally wounded himself to make the giant flower grow and escape a pit.
I think that demons only fall for the temptation when they think that human blood will make them super powerful, when in reality I think it just heals all demonkind.
like an israeli prison except consensualtfw you're a demon patrol officer doing some monitoring of the human currently in your custody and then you witness one of your coworkers just going to town on her