The locust leaves in Nanluogu Lane have fallen and turned yellow. In the autumn of 1958, Ma Ping'an turned 18, a moment of extraordinary significance. As the backbone of the Ma family, he has long been accustomed to shouldering responsibilities with his young shoulders, protecting his mother, sister, and the quietly budding feelings in the warmth and ups and downs of human relationships in the courtyard. On birthday night, the words "protect your family well"