Why do I have a Cultivation System in a Fantasy World?

Jun Xiaoyao transmigrates into a fantasy world of swords and magic, arriving as an egg deep in the Northern winter forest and later found by the newly appointed duchess. He awakens the Dao ancestral system, a system that looks at making him the Dao ancestor of this star system [Ding!] [Congratulations.] [Obtained: Hongmeng Sutra.] [Obtained: Dao Ancestral Soul.] [Obtained: Dao Companion Gift Pack.] ... "   " Follow his journey as he changes a sword and magic world into an immortal realm