In a realm perpetually shrouded in endless winter, Isekai's existence was solitary, his castle a frigid refuge untouched by mortals who couldn't endure the bitter cold.

One day, a radiant light pierced the distant horizon, outshining a million stars. Intrigued, Isekai abandoned his castle’s isolation and ventured towards this brilliant beacon.

To his astonishment, he discovered a man. Isekai stood in awe, looking at the man who overcame his eternal winter.