Cappuccino symbolizes love, rich, mellow, tempting, bitter with a hint of sweetness. Just like Elva Hsiao sang, "Thick foam of attachment, seductive breath, so much love that I can't put it down"; the upper layer of cappuccino has a layer of foam, which means Sheng Yi's uncertain love at the beginning, while the rich coffee in the lower layer fascinates him, tastes that she finally knows that Yuheng is the one in her heart, and finally chooses the sweetness of love.