Tuanzi had heard several uncles and aunts mention Little Aunt Gu Jin.
Gu Jin is the youngest child of the Gu Family, and the only daughter, cherished by Mr. Gu and his wife like precious gems back then. Her brothers treated her exceptionally well too. Only Gu Jin's suitors were unfortunate.
The parents and brothers only wanted someone who would be devoted to their daughter/sister, not requiring Gu Jin to have a life of luxury, even if it was simple, as long as she was happy, but Gu Jin fell in love with a detective.
Si Huai's father was perfect in every way, except his profession was too dangerous. Mr. Gu admired this kind of young man but couldn't rest easy entrusting his daughter to him.
Busy with work, he might neglect his family, and pursuing criminals outside could be perilous, possibly leading to retaliation against the family.
However, Gu Jin only had eyes for this one person, and he showed enough sincerity.
