■ niconico: sm17233860br ■ song title: 現実的論理主義者br ■ singerutaite: Rabipo (らびぽ)br ■ composer: Goboumenbr ■ original singer: IAbr ■ translation & subtitles: IAVocaloid (watch?v=Mn9jwzvkBVk)br br The song and video were already beautiful, but Rabipo's voice made it even more utterly gorgeous.