【Gumi Hatsune Miku Kagamine Rin】Happy Boy 幸福な少年.mp4

I do not own this video
i dont know the real translated title T_T help me pls....
Original Video: http://www.nicovideo.jp/watch/sm20184946

Credits
Vocal: Gumi,Hatsune Miku & Kagamine Rin

Everything: Kururingo (http://kururingo.zouri.jp/kfs.html)(mylist/23928017)