This question was not insignificant, for it was discovered that not only was Song Ennian's blood type incompatible with Song Enshu's, but it was also incompatible with Song Lei's.
Song Enshu's blood type followed his birth mother.
Everyone came to the conclusion: Song Enshu was not Song Lei's son, at least not the son of Song Lei and Su Xiuling.
While everyone was searching for a suitable blood source for Song Ennian's blood transfusion, they were also untangling this affair.
A suspicion quickly arose: Su Xiuling and Su Xiufeng had given birth at the same time in the family home, and at that time, only the two of them were present, so it was very likely that a baby swap had occurred.
Under those circumstances, it could only have been a deliberate switch, but who was the culprit? Su Xiufeng or Su Xiuling?
