Happy Synthesizer2,191 Views SingersGekiyakuVVocaloidKazehikiVVocaloidProducerKagamine Len! (DESI VER.)ProducerViews BreakdownYouTube2.2K ViewsDaily Views64/0144/0224/0314/0434/0544/0654/07VideorefreshRefresh Song DataListenYouTubeVocaDB