Zheng explicitly declares his intent to conquer all six warring states within 15 years to end the era of eternal conflict. Key Plot Developments
Zheng is now the undisputed ruler of Qin, having finally outmaneuvered the factional threats that plagued his early reign. Kingdom 4th Season Episode 26
It transitions the show from a "defensive" posture (surviving internal coups) to an "offensive" one (the literal conquest of China). Zheng explicitly declares his intent to conquer all