Fire Emblem - Where does babby come from?

My Castle has a Hyperbolic Time Chamber.

When a straight S-Support happens, the girl gets pregnant immediately and spends her maternity leave inside the Hyperbolic Time Chamber.

When the baby is born, the girl exits the Hyperbolic Time Chamber, but leaves her baby inside.

The Hyperbolic Time Chamber apparently has a day care service. The child is raised by them and taught all they need to know to be a lean mean murderin’ machine, and they are also told many stories about the heroic deeds of their parents.

When the child is fully grown, they are allowed to leave the Hyperbolic Time Chamber and join fearless leader Kamui’s glorious army.

Remember that while years pass inside the Hyperbolic Time Chamber, only a few days, if even that, pass outside.

That is what actually happens in the game. I shit you not.

That's actually pretty fucked up. Throw your kids in a time chamber, deny them a childhood, never get to know them, bring them outside so they can kill people with mom and dad. I haven't played the game, but based on your post, that's what it sounds like.