Military action
Asteria is assigned to watch Shinzo for signs of betrayal after the Queen has prophecies as such.
The Queen has prophecies of Shinzo betraying Hyrule and the gods. The king is hesitant to believe his most loyal servant would betray him. Shinzo has to stop his research for fear of his secrets getting out. Asteria and him fight together with Volga against the rebellion. They become close on the battlefield.