(No time travel + no system + wizard + demon hunter + sword and magic + western fantasy continent)

Bandits burned down the village, and four-year-old Leon became an orphan. He was picked up by the demon hunter Siccoli while wandering around.

He thought he was saved, but ended up becoming a test subject for the Cat School witcher.

By accident, he successfully mutated into a demon hunter, killed Sikorri, took away his demon hunter medal, and embarked on the path of a demon hunter.

He thought he would live a peaceful life until July 12, 1460, when the celestial spheres intersected and the worlds overlapped. The ancient continent, which had been peaceful for a long time, welcomed new magical powers and monsters.