Chaos Dragon Ancestor: Starting with Daily Opportunities

Ye Xuan is reborn in a different world. Due to his extraordinary bloodline, he is sold by a heartless family to a demon sect saint heir for 'demon cultivation.' His bloodline is so exceptional that he instead devours the saint heir. He then flees, pursued by the sect. Fortunately, he awakens the 'Daily Opportunity System' and uses it to ambush and kill the demon sect master. The 'opportunity' turns out to be a stunningly beautiful woman of equally extraordinary origin. To uncover her mysterious past and find her clan, they join forces and travel together.