Ataru Akinashi

In this action isekai manga, a powerful sage who died in battle has the chance to be reborn as a noble-but not before being trained by the gods in heaven!Adelphus, the most powerful sage, was defeated by the Calamity Beast, an enemy of mankind, and was taken to heaven. However, he learns that the beast of evil will return in time, and was reborn as an 8-year-old boy named Will. The tale of the peerless warriors begins now!