Li Xing traveled through the mass graves of the Warring States Period, with an arrow stuck in his chest, but bound to the immortal attribute system - he could gain a little more strength, physique, speed or wisdom every year.
He originally wanted to live forever, but when he became a "temporary disciple" under Confucius, he discovered that this system was also an "accomplishment collector": he personally experienced the Battle of Changping, and his strength skyrocketed; he witnessed Qin's destruction of six kingdoms, and his physique doubled; he saved a unique volume of pre-Qin books that should have been burned, and his wisdom exceeded the limits of mankind.
From pre-Qin to modern times, he served as a Qin official, a Han official, a Tang merchant, and a Song Yin. He saw the unification of the First Emperor, the chaos of China, the collapse of the Tang Dynasty, and the bloody cliffs. He thought he was an eternal spectator of history and just wanted to add some quiet moments.
Yes, you can rate yourself