need help rq

i need help to find this manhwa cus i forgot the title.

so, it's a romance manhwa, a typical historical romance one. the fl is red haired and the ml is blonde haired, also I don't remember much but, fl got reincarnated but the soul of the body who she's reincarnated as is living in her og body in modern era.. and loving it more there. i remember that the fl got drunk and spent the night with ml on first chapter (or chapter 2..) and ended up get engaged (?) .. please help..!