I'm in Da Qin, and I'm Already a Swordsman at the Beginning

At the end of the Warring States Period, on a low hill, Li Donglai was extremely disappointed, thinking that he had accomplished nothing after traveling through eighteen years... "Ding! It has been detected that the host has traveled through time for eighteen years, and the god-level sword-making system has awakened. Please choose the identity of the host!" "1: A hidden sword-making master who can forge famous swords in the world, and he is also a master of swordsmanship!" "2: A peerless swordsman, the best swordsman in the world!" "3: Become an immortal with swordsmanship, live forever, and be able to break the void and leave at any time..." Li Donglai was a little confused. Why choose such a simple option? Of course without hesitation... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.