Tang Shaoyang observed the whole thing from the side. The moment he mentioned the King was dead, the trio immediately made their move. They had a few minutes' discussion, splitting the job at that moment. Then he summoned the spirits to follow them, not the big ones, of course.
Tang Shaoyang put himself a thousand meters in the air, observing everything from above. Osmund and Niko opposed Alger's idea to spare the Royal Guard. Those were the elite army tasked with protecting the castle and the capital.
Alger at first wanted to spare the Royal Guard and persuaded them to join them, but Osmund and Niko opposed that idea. Their reasoning was sound; it was because the Royal Guard only listened to the King's order. Not just that, they were picked after a rigorous selection. They only chose the ones loyal to them.
