As time went by, the light green ferrous sulfate precipitated into regretful crystals, like undissolved salt grains, making them ache at the bottom of the bottle. Lin Xiangbei's confession, Zheng Qiaoqiao's questioning, disappointment and powerlessness intertwined with each other, and the habit of seeing each other tomorrow has become never again. Is friendship between opposite sexes pure or lasting? "Zheng Qiaoqiao, goodbye"
Intention: Is there pure friendship or long-term love between opposite sexes?