Ipartment 4 episode 18 where did the teacher named Shangguan speak with an accent?

The teacher named Shangguan in ipartment 4 episode 18 speaks with a Shandong accent.

Shangguan, a teacher of Hu Yifei School, is named Shangguan Qian Chu. Shangguan is played by Fan from Shanghai. In the TV series ipartment 4, Fan Tiantian plays two roles. One is Salina, who is a bank clerk and plays opposite Ceng Xiaoxian. She has a glib tongue and finally succeeded in fooling Ceng Laoshi, so that he not only didn't get the money, but also started their new business. The other is Shangguan Qian Chu, the teacher who plays opposite Zhang Wei. He is a language genius, and playing with Putonghua and dialects makes Zhang Wei unable to cope. He almost staged a drama of Wei Zi and Fourcand with Zhang Wei.