Shen Muyun: Being pampered by the whole family → loving too much → suffocating → escaping to find "himself"
Lu Zhan: Disliked by the whole family → No love → Escape → Being "needed" for the first time in the army
One ran away because he was "loved too much" and the other ran away because he was "never loved".
The two people stood at the two extremes of "being loved" - but they collided with each other on the matter of "escape".
Their destination is not to "escape" - it is to "find themselves".