小松's Favorite

It's been a long time since I read it but pls help me find the title .. So the female lead is a singer but she died during her concert because of her bitch sister, and she got reincarnated to the girls body who died or exhaustion during her practice..And i think she's till a trainee that time...But the female lead who died use to be a popular singer, and she's been cage before to this man ,i forgot hes role but the fl sister like this man too,but the man is obsessed to the fl whatever... Please i hope someone can recall...