Three days ago, Xiao Yi unexpectedly gained a superpower: he can see a percentage number above everyone's head, but he doesn't know what it means. He discovers that the number above his wife Xiao Ya's head is zero, which overturns his initial guess that it represents 'affection value.' However, the number above Aunt Lin's head, Xiao Ya's stepmother, changes frequently and is quite high. Aunt Lin and her husband Su Zhenye are in a business marriage and often quarrel due to their poor relationship. While accompanying and caring for Aunt Lin, Xiao Yi witnesses her number constantly fluctuating. He also discovers Aunt Lin lying about going out to meet a strange man, leading him to suspect the number represents 'infidelity value.' To uncover the truth behind his power, Xiao Yi repeatedly approaches Aunt Lin, but the changes in the numbers remain baffling, and he has yet to unravel the mystery.
