When conducting searcher behavior analysis, we often come across some interesting things. During a pre-year exchange meeting, a student friend talked about an incident in their dormitory: someone searching for "antique vases" ended up clicking on *Jin Ping Mei* (The Golden Lotus). Through the page introducing *Jin Ping Mei*, they saw a condom advertisement and subsequently purchased a certain brand of ultra-thin condoms. These kinds of conversion relationships are sometimes referred to as coincidences or accidents. However, upon closer examination, we uncover the essence of businesses competing in the online market: customer needs.