Hiding away from the Gods and the Fates just so he can train. Just so that he can become the strongest.

Satoru was born with a mortal father and a minor Goddess mother. Effectively, Satoru was a demigod.

And the Fates say he'll he the strongest warrior to ever live. He's sure this much is true.

His mother hid him away in the mountains. However, during his training, he was allowed a single companion. The one his mother hated.