Help me find this manhwa

Guys , I read this straight manhwa like 3 or 4 years back . I don't remember much but I'll describe what I know . One the first episode when the FL walks into the apartment, a flower pot which hangs above her breaks and falls down and the ml comes to rescue. I remember the ml and fl used to date in scl days but due to some accident she forgets that school life so ml leaves her life in the past . And also ml is an idol? He sings and for a better clue I loved this art very much , this art was so good like shiny maybe if you know "the deathless" manhwa, it's similar to that manhwa art. Plz help me find it I'm dying