Summoned as a hero to a different realm, he bravely rescued its inhabitants only to be ensnared in a devious scheme, forcibly sent back to his homeworld. To his astonishment, he restarts life as an infant... Follow the wild odyssey of a former hero reborn as a melancholic high schooler, unexpectedly summoned back to the very realm of his earlier triumphs! The sequel offers ample opportunities for twists and turns, doesn't it?