Summer is approaching and I want to wear off-shoulder tops and sleeveless dresses, but it makes me sad because my trapezius muscles are so assertive... I guess having perfectly straight shoulders is just beyond my reach, even with exercise. So, I'm thinking of getting fillers to refine my lines. Please recommend a great place for shoulder fillers near Gangnam or Apgujeong!

I don't want them to be too puffy; I prefer a smooth line that drops from the neck to the shoulders...!!!