Saint Ai's Fifth Element

All knights turned and took a step forward, aiming their spears toward the newcomer. The emperor stared at her finger, which pointed at his head but didn't allow rage to appear on his face. Instead, he smiled and raised a hand, summoning a hundred light swords from the sky.

"I knew a new era would meet resistance, but I assumed it would be a greater attempt than this. Rain is a beautiful name, so let this light rain on you."

"I already said that I am one of the rebellion's leaders, so that means there is more," said Rain with a smile. "A leader never attacks alone, dear Light Emperor. But, as a strategist, you should know that the most unlikely scenario… can become likely."

As soon as her words fell on the crowd's ears, the prisoners awaiting their execution erupted with mana. Cladded with rage and power, those set for execution became the executioners. They grabbed the executioners' weapons and attacked their throats, ending their lives instantly.