Jingrui is finding himself drawn back toward a military position, after fighting at the northern border, and Yujin follows along, as he always has, despite his own reservations. Along the way, the two of them get into trouble, politics, and eventually a deeper understanding.
Very few of Yujin’s reservations had ever held up in face of Jingrui’s smile. Not when they were little and stealing sweets off Aunt Jing’s table (with her amused connivance, Yujin had realized years later); not when they were a little older and Jingrui had dragged Yujin everywhere after their glamorous, if also sometimes alarming, older cousins; not when they’d come of age and Jingrui hauled Yujin out onto the roads to wander the country with that very same smile. He could barely imagine leaving Jingrui’s side, at this point. So there was really nothing else to do but elbow him back until they managed to shove each other into the shallows, laughing.