Yu Zhizhou is a gentleman and gentle as jade, Qiu Ze is chatty and talkative, Zhou Ye is taciturn and shy, and Hua Zhe is mature, stable and considerate. What kind of extraordinary story will the meeting, acquaintance and mutual understanding of four young people with different styles reveal? Can they open the cold door to each other? Can they cross the vast sea between isolated islands? What kind of charm will the collision between lonely planets bring? Is it a momentary dazzling spark or an eternal immortal miracle?