Rather than romantic productions, this week’s major K-drama casting announcements are all for high-concept affairs. Among them are thrillers and action projects, some taking place in recent history, others in alternate worlds.

Read on for the latest casting news.

1. I Am a SinnerItaewon Class star Park Seo-joon is reported to be in talks to take on the leading role in I Am a Sinner, an adaptation of a webtoon of the same name by Lee Moo-ki.

Set in the 1980s, a turbulent decade in modern Korean history, I Am a Sinner will focus on Park Eon-jin, the protagonist role offered to Park, who enters the criminal underworld and soon rises up the ranks during a ruthless gang war.

Park Seo-joon in a still from Itaewon Class. Photo: NetflixPark Seo-joon in a still from Itaewon Class. Photo: Netflix

Known by the nickname Paeng-yi, the word for a traditional Korean spinning top toy, Eon-jin is the sole survivor of a notorious incident at a pawn shop. With the gold he manages to pocket, he begins to stake his claim in the underworld.