To be honest, Kang Li feels pretty awkward about how to address the Xi family members.
Based on Elder Xi and Jiang Hongfa's seniority, Kang Li is Jiang Hongfa's granddaughter, while Xi Guobang is definitely in the same generation as Jiang Boya—which means Kang Li is Jiang Boya's daughter and would have to call Xi Guobang 'Uncle'.
As for Elder Xi, of course she has to call him 'Grandpa Xi'.
Kang Li does exactly that, but whether it's little Xi Chenyu or that classmate Xi Jingyu from just now, both call Kang Li 'Auntie'—which bumps her up a whole generation, putting her in the same level as Xi Guobang.
If you push it forward like this, Jiang Boya goes from Xi Guobang's peer to his elder.
"Don't worry about all that seniority stuff."
Xi Guobang waves his hand; he's a grown man and doesn't fuss about these things.
Jiang Boya laughs beside him, "Your son calls my daughter 'Auntie', so shouldn't you call me 'Uncle'?"
"Keep dreaming!"
