Wondering how Kim So Eun looked like when she was little?
Here are Kim So Eun pictures from little to now:
So Eun in Boys Before Flower Era.
So Eun in The Man Who Can’t Get Married Era.
For clarification, Kim So Eun was indeed in Sad Love Song drama as Teenage Kim Hee Sun (thanks to melapharma)
Here are snapshoots of So Eun part in the drama:
credit to ashtoh.wordpress.com