Aster stared at the two, forced to kneel before him, and began to think. From the notes from his mother, he knew about the "ancient contract" that bound the two, and how they couldn't refuse commands under its power.
Of course, there are limits to it, but as long as he doesn't overuse the commands, the twins would be unable to touch him at all.
However, the situation 2,500 years ago, when they just formed the contract, the Frostfire Legacy's seal, and right now was completely different. Aster was just too fragile and faced with deadly threats all the time, making the two worried about their survival.
After all—although spirits don't have the concept of lifespan—if their contractor dies, then they would also disappear.
In short, everything stemmed from the fact that Aster was weak!
He closed his eyes, thinking deeply, before taking a deep breath.