Yu Kosuge was born in Tokyo 1983. She passed the entrance examination for "highly talented children" at the Conservatoire in Tokyo when she was 4 years old. Only five years later, Yu Kosuge had her debut with the Tokyo New City Orchestra.
She has been living in Europe for 10 years now and is studying with Professor Karl-Heinz Kämmerling. She gives concerts in Tokyo, Cincinnati, Berlin, Hamburg, Hannover, Munich, Vienna, Salzburg, Paris, Brussels, Amsterdam, Zurich, Danzig, Moscow and Zagreb. She works with conductors like Rudolf Barschai, Dennis Russel Davies, Max Pommer, Daniel Lipton and has been soloist of Philharmonia Hungarica, Niedersächsisches Staatsorchester, Hamburger Camerata, Mozarteum Orchester Salzburg, the Orchestra of Jeunesses Musicales and of Tokyo Metropolitan Symphony Orchestra.
Yu Kosuge has been awarded numerous scholarships (among them Deutsche Stiftung Musikleben, Jürgen-Ponto Stiftung, Franz und Christel Kuhlmann Stiftung). She has won the Grotrian-Steinweg Competition and the Steinway Piano Competition. Being a prize-winner of the International Summer Academy of the Mozarteum enabled Yu Kosuge to play at the Salzburg Festival. Moreover she appeared at Rheingau Festival, Schleswig-Holstein Festival, Schwetzinger Mozartfest, Mecklenburg-Vorpommern Festival and at Europäisches Klassik Festival Ruhr.