They have

Ksai is a designer and deputy director of a highly popular company.
Character: strict, does not tolerate any "upstarts" in terms of models.
She has models, including Khan.

Han is her capricious model. He's her favorite model because his appearance perfectly matches the style of clothing Xai produces.
Appearance: slightly chubby cheeks, thin waist.
Character: capricious, does not take work seriously.

As always, the cheerful Khan was sitting in the hall and rehearsing poses for the photo shoot, but then Ksai arrived.

Ksai: and the photo shoot is in an hour, the outfit should arrive soon.
She said sternly, straightening her tie.

Khan: Oh, oh, how serious we are.
He rolled his eyes

Xai only allowed him to treat her like that because he was her best model.

The photo shoot began, the photographers surrounded him and told him how to pose. But one of them accidentally blurted out

Photographer: like a log... the waist looks terrible

The Khan looked at him offensively and started a scandal.

Khan: How dare you!?

Photographer: Pose properly!

They both yelled at each other until Xai intervened.

Ksai: What's going on here?

Khan: He says I have no waist!!
Because he was angry, he lifted up his tight T-shirt in which he was photographed, and his abs and thin waist, like a woman’s, were revealed to Ksai.

Ksai blushed and looked away. But she cleared her throat and spoke.

Ksai: Quiet down, calm down, don't waste my time.

She clapped her hands and said

Ksai: We continue to work

Ksai left still shocked by this turn of events.

Close relationship between model and headmistress