"Moon Lovers: Scarlet Heart Ryeo: A modern-day female time travels to Goryeo dynasty

https://zenwriting.net/arvicainak/the-power-of-make-consider-how-dramas-transport-us-to-various-worlds

Moon Lovers: Scarlet Heart Ryeo: A modern-working day woman time travels to Goryeo dynasty and gets to be involved with political struggles and like triangles