823 Astonishing! So This Was the Reason!

Nian Xiaomu was really exhausted.

She had only sensed that something was wrong with Tang Yuansi and made a random guess—she did not expect him to be really sick.

She snapped back to her senses and said, "You knew about it right from the start…"

Shangxin interrupted her and said, "However, Brother Xiaosi went through an operation to treat his illness a few years ago. He has recovered."

"Are you sure?" The image at the hospital flashed past Nian Xiaomu's mind again.

Her instincts told her that things were not that simple.

Congenital heart disease is not something that could be easily cured.

"Brother Xiaosi had heart disease right from birth. He had been receiving treatment and also underwent a few operations for it, so his situation had been improving. A few years ago after he had undergone his last operation, he told me personally that his illness had been fully cured. I asked Uncle Yan, who also said that he was fully cured!"