mashiroiro symphony
ましろ色シンフォニー ましろ色シンフォニー_-Love_is_pure_white- 純白的交響曲
A 2009 eroge by Palette, also adapted into two manga by Minazuki Futago, the 2009 original and 2011's Mashiroiro Symphony -Wind of silk- (ましろ色シンフォニー -Wind of silk-), both serialized in Kadokawa Shoten's Comp Ace, and a 2011 anime by Manglobe.