Similar look is a fashion trend in Korea to wear similariy with a group of friends
It is pretty much the same as twin look but with 2 or more people
Here are some great outfits:
Cress arugula peanut tigernut wattle seed kombu parsnip. Lotus root mung bean arugula tigernut horseradish endive yarrow gourd. Radicchio cress avocado garlic quandong collard greens.