Music lesson~~

Kemada Kei is a very talented musician. His piano playing skills are well-known even outside the country. His classmate, a foreign student, Azumi Iris asked him to teach her how to play on this instrument and he agreed for that - but will it be an gratuitous deal?

...It's hentai, so the answer is quite obvious.. ;p

Shading the keys of the piano will be painfull.. .-.