In the smokeless battlefield of local life, the names of Su Wan and Lu Ze always appear at the same time - the censorship of data on the list, the tit-for-tat fights in the industry group, and the tense confrontation in front of offline promotion points. She is the operation team leader of "Yuehuo", leading the small factory team to fight their way out of the cracks of the giants; he is the product leader of "Xingtu", and he has the resources but has never stopped innovating. Everyone knows that they are each other's most difficult competitors. They will always fight each other when they meet, and they will always quarrel with each other when they speak. Only they know how the anonymous "Ice Coke" and "Ice American" on the other end of the phone share their fatigue and persistence under the same starry sky across the screen every late night of overtime work - complaining about the weird boss, exchanging operational experience, and even tacitly ordering a cup of milk tea delivered across the city for each other when they are on the verge of collapse. When the lights of the industry summit suddenly came on, two stunned faces froze on both sides of the podium at the same time. The nickname of a confidant on the mobile phone screen and the mortal enemy of a competing product in reality suddenly overlapped at this moment. From then on, every workplace confrontation has a hidden heartbeat, and every public exchange of words has hidden undertones that only each other understands. From grabbing traffic to joining forces to break the situation, from online confidants to offline lovers, they have redefined "competition" and "cooperation" on the track of local life. It turns out that the most extreme romance is the mutual sympathy after meeting an opponent in chess; the best love is still daring to give your back to the other person on the fiercest battlefield.