sinb did glanced and bowed to moonbin. its a bit awkward, after that she joined yerin bcs theyre both shy after the eye contact with moonbin and eunwoo. Also you can see when eunwoo is near yerin, yerin whisper something to umji, like she code-ing umji. Umji laughs and tease her. She looks so shy. Well i didnt ship sinb and moonbin but eunwoo and yerin is a really good pair!💕💕