Only One Tomorrow

Read Only One Tomorrow manhwa on Bibimanga. She's starring in the role of her lifetime. It's 1931, and Leewon's brother has been framed. As she tries to escape with him, she's knocked out and wakes up in the 21st century. When she's then asked to play the character of On Leewon in a film, she realizes that it's the story of her own past and resolves to find out who framed her brother.