6-Year Old Sage Wants to Tread in The Shadows ~Becoming the Ruler of Darkness and Training My Retain

The man once known as the strongest sage reincarnated as a 6-year-old boy – Eddie.Having retained the memories of his previous life, having exceeded his previous peak, he came to a decision.— To stay in the shadows instead of becoming the greatest sage.Eddie buried his memories of obliterating the Demon King and enrolled in the Royal Academy as a normal 6-year old boy.Of course, after the death of the Demon King, he nurtured his retainers and acted as the Ruler of Darkness in secret.Sometimes the Ruler of Darkness.Sometimes a freshman in the magic academy.This is a story of the strongest juvenile sage and those who swore loyalty to him.