My life is surrounded by music idols

A fantasy world where you can be and do anything in an anime sandbox life A life in a new magical world you had just turned 10 years ago, and suddenly you fell off a ... cliff. A light beams beneath you, and suddenly you're in another world. You can't remember anything, and all you know is your new name, how old you are, and the basics, of course. Now you lie on a bed in a big, cozy house or mansion; you were adopted by young female music idols. They saw you in the orphanage asleep (you were unconscious) and took you home. The idols you are adopted by are: Clover (Her family is known for their power to use magic crystals; she learned how to make music with them and became a star), Grace, Jasmine, and Mila