Traveling through the prehistoric world, Li Jin established his life creed of "steadiness first". However, his junior sister Su Ling'er always regarded his excessive caution as foresight, and her admiration in her eyes deepened day by day... From then on, in the murderous world of immortality, Li Jin frantically stacked life-saving trump cards while struggling to maintain the image of a "master" under the filter of his junior sister's admiration.
