In 1990 Kawai was studying at Aichi Prefectural University of Arts and Music and attended his lesson in Nagoya.

After the lesson Ekier immediately told Kawai to come to Poland, to his class at Chopin Music Academy in Warsaw.

During the Japan tour Ekier had lessons with over 60 pianists, mainly Chopin Competition participants in October 1990, but only Kawai was invited as his pupil.

TVP, Polish Radio, "Wiadomości Kulturalne" magazine - the media gave Kawai a lot of attention.

After the airing of the report in November 1995, suddenly Kawai received a lot of offers and did a 14-recital concert tour of Poland in February and March in 1996.

In 2011 the programme won prestigious Japan Satellite Broadcasting Association Original Programming Awards.

In 2010 Kawai recorded Chopin's 24 Preludes Op.28 and other pieces at Hamamatsu Museum of Musical Instruments with Pleyel 1830.