Even if the old man was already sixty years old and he had already retired from his previous profession, this old general was still worthy of holding a high position in the World Union organization instead of being a mere instructor.
Or maybe he came here because he knew about the abyss' trouble in advance and wanted to become a special instructor when his real purpose was to guard the academy that might become one of the fiercest battlefields against the abyss demons.
Everyone speculated things in their heart, but the old general didn't care and just silently dealt with a few high-level monsters or beasts who had strange abilities before these beasts and monsters could fully show their abilities.
The old general was like an emotionless killing machine, and his momentum was so much like a seasoned commander who was often on many battlefields.