Muu Rushuang has asthma and suffers an attack every time she cries.
His wife felt for Muu Rushuang and discussed with him that since Muu Rushuang is young and doesn't understand things, and her body is frail, if she keeps crying like this, something bad might happen. She suggested it would be better to send Muu Qingwan back to China first, so his parents could help take care of him for a couple of years. Once Muu Rushuang grows up a bit and becomes more sensible, they could bring Muu Qingwan back.
He agreed.
Since then, he returns to China once a year to bring Muu Qingwan abroad.
Every time Muu Qingwan stays with them for just a few days, Muu Rushuang would cry and have an asthma attack, ending up in the hospital.
His wife would then cry and beg him to send Muu Qingwan back to China.
He and Yang Jiezhen both thought that once Muu Rushuang grew older and more sensible, she wouldn't cry out of jealousy of Muu Qingwan.
