It turns out that Su-Dragon is continuing the family business of the doctor

(1)Neither of them came from a rich family
(2)Was it the richest family
(3)a family of doctors
(4)He’s a doctor
(5)Grandfather, too
(6)He was a doctor
(7)My aunt is also a doctor!
(8)a deep-rooted family
(9)So, you go first
(10)as expected
(11)He’s chosen to continue his medical family’s reputation
(12)a patient’s life
(13)Dad, don’t worry
(14)There’s no fear that a doctor can exist without a patient
(15)Dad, don’t try