라성식자재마트

this was supermarket + Daiso in one. Daiso section was quite small but superkarket had a large selection

Local supermarket with nice bargains. Fresh vegetables are rare to see in downtown. Clean and convenient.

It wasn't in Gangnam, but I got it in Seongsu.

The staff were kind and attentive, and they treated me gently even though I'm not used to Korean. Thank you so much!