On the bus on the way to school, ‘Tang Sheng’ and ‘Wanting’ fall in love with each other and start their heart-fluttering first love. One day, when they became each other's world, in a shocking accident, 'Wanting' leaves, leaving only a letter and 'Tang Sheng'. A few years later, a new friend, Liu Ting, appears in front of Tang Sheng. Unforgettable feelings grow from unfamiliar familiarity...
