Muryoku-P (無力P) whose name derived from his 1st song "Powerless", since Powerless translated into Japanese is Muryoku, is a producer, known for using Megurine Luka in his lyrical, rock sounding songs. His intense Piano usage, as seen in "My Savior", creates an individual sound. He's also good in creating his unique techno-pop styled songs, as seen in "Rainy", or pianohouse styled songs, as seen in "Flowery Song". His "Flightless Bird" earned the 1st place in the Weekly Ranking.