The Albasaeng (2016)

Kyungmin, a popular writer and columnist who used to be a fat woman in the past. Taejin, Jae-wook, In-seop, and Jung-jin are the four alumni who appeared in front of her. Now, they had their own eyes, who had become like uncles, but there was a separate thing ... The BAR's Albasin index and Eunjung, run by Kyungmin. Their dangerous bet against them begins.

Unfortunately the movie The Albasaeng is not yet available on HBO Max.