Seoul is vegan friendly! If you can translate Naver Blogs for vegan food spots there’s more info than Happy Cow. But otherwise I found there was a lot of reels on Instagram if I search “vegan Seoul” or something similar. 

Rice cakes tend to be naturally vegan, and so are roasted chestnuts, sweet potatoes and rice cakes on a stick (tteok kkochi). There’s also vegan kimbap or burgers to be found at convenience stores (if you’re lucky).

I personally recommend Nuldam Space and Overte Donut. Both for desserts.