What Andrew didn't know was that Shadow's agents were proportional in gender, meaning there were almost the same number of men and women. This isn't strange, it's just that since they are people who live in the shadows, they have joined their comrades.
Shadow's agents had formed couples among themselves, without Andrew knowing, and when Oliver told him, he couldn't help but be surprised. Andrew honestly didn't know all of his agents.
At first, they had joined because they were subordinates, almost children of Oliver, and they were few, but over time, their numbers increased. Currently, there are more than 200 members adding up all the regions where there was a Celestial Palace.
Since the one who dealt directly with them was Oliver, Andrew didn't know all of them and was unaware of this situation. Most of them are always outside the Heavenly Palace, so he hadn't been able to evaluate them with his ability either.