It is!

The secret ingredient is the dark Chinese vinegar which imho is to die for, especially when blended with the sesame seed oil.

The chinese black vinegar is a bit special though, my partner is not that into it so I simply pour extra on my serving😅

Recipe I go with is dead simple and idiot proof:

• smash the whole cucumber with something (I use a rolling pin, but its a high risk the cucumber breaks which may or may not be your thing)
• cut into fun pieces
• put in a bowl
• add chinese black vinegar, sesame seed oil, garlic, light soy, chili flakes

There's more advanced versions but this is fresch umami enough.