#kimi wa dekinai ko #you are a useless child #cover #vocaloid #vocaloid cover #you are an ineffective kid #male cover #kikuo #i tried to sing #君はできない子 #歌ってみました #umber #umbratic forest #umbraticforest #you are a useless child umbraticforest #you are a useless child umber #you are a useless child by kikuo #kimi wa dekinai ko by kikuo #kikuo kimi wa dekinai ko umber #kikuo kimi wa dekinai ko umbratic forest #kimi wa dekinai ko english cover #vocaloid english cover #hatsune miku