Special constitutions can benefit cultivators by helping them to cultivate twice the result with half the effort, but it can also be life-threatening, as is the case with both Lin Feng and Lu Yuxin, and Qin Ruoyun as well. However, Gu Lin's Fragrant Body is the exception, to say she is favored by the heavens wouldn't be an exaggeration—far from being dangerous, it makes her cultivation easier.
But Qin Ruoyun was only at the peak of the Acquired level, far from the Innate realm. She needed to break through to the early phase of the Innate, which is the first major hurdle for a cultivator.
As he thought about Qin Ruoyun's situation, he noticed someone sneaking behind him, now hiding behind a tree, then beside a potted plant. However, his gleaming clothes betrayed him; under the sun, they shone like a human-shaped diamond.