What's Our Hero Doing?

Our protagonist, who cleared the extremely difficult of Vanta Black Ring a thousand times, awoke in the body of Ordinary Villager A (Hans) in Aram Village, in the tutorial area.

Monsters were attacking the village! In the midst of life and death, he couldn't help but think of the hero named Cadis and how he'd show up and defeat the monsters - until that very hero died with a single attack. Just when he thought everything was over, he absorbed the hero's abilities!

What happened to the protagonist who wanted to survive comfortably beside the hero, exactly?