[The source of the explosion was due to the prince after all. The prince, seeking power, began his own forbidden mana-craft research before ultimately using it for political means: terrorism. He hated his father who gave himself longevity with magic.]

[For the prince, the idea of ruling started like a pleasant dream. Over time, it turned to a longing, then a passion, and eventually bitter frustration. Anger followed, and year after year, decade after decade, step by step, he changed.]

[A small stream can cleave mountains when given enough time, and the prince was much less than a mountain. A similar method was used to make our citizens trusting and unwary.]