Shoji was born in Tokyo into an artistic family (her mother is a painter; her grandmother, a poet) and spent her early childhood in Siena, Italy.

From 1995 until 2000, she studied at the Accademia Musicale Chigiana under Uto Ughi and Riccardo Brengola.

In 1998, she moved to Germany to study at Hochschule für Musik Köln under Zakhar Bron and graduated in 2004.

In 1997, she made her debut at Lucerne Festival and Musikverein in Vienna with Rudolf Baumgartner.

Until 2009 she used the 1715 Joachim Stradivarius on loan from the Nippon Music Foundation; today she plays the 1729 Recamier Stradivarius on loan from Ryuzo Ueno, Honorary Chairman, Ueno Fine Chemicals Industry, Ltd. Waxman: Carmen Fantasy; Milstein: Paganiniana Israel Philharmonic Orchestra; Orchestre Philharmonique de Radio France Lars Anders Tomter (viola), Mischa Maisky (cello) Sonatas, partitas, preludes & fugues