Yunlan was once a legend in the world, but he lived incognito in a corner of the city and became the owner of a corner cafe. He no longer talks about fistfights, but uses his ingenious human touch to untie the knots of his guests. The rhythm of the city is like an undercurrent of rivers and lakes, and everyone is fighting for their own ideals. Yun Lan originally wanted to be a bystander, but due to a sudden entrepreneurial crisis, he was involved in the confrontation between power and ideals. Old rivals turned into new investors, and old grudges quietly revived under the lights of the city. Yun Lan looks for the extraordinary in the ordinary and protects warmth in loneliness. His choice will determine the fate of a group of ordinary people and reshape his relationship with the city. The city is no longer a mediocre stage, but the arena of everyone's soul.