Kesou no Rondo

Kyouya is a violinist with a bright and promising future who, nevertheless, is suffering from a certain worry troubling him.

One day, he drops by the house of someone who understands him and has known him for a long time, a young lady named Benika who is the daughter of a respected and wealthy family. Benika immediately realizes something is wrong with Kyouya, and she reassures him with words of encouragement, to go along with her confession that she has liked him for many years. Upon hearing that, Kyouya expresses his own feelings towards her that he has kept hidden until then, and gently kisses her on the lips. They keep going just like that, and not long after, he begins to undo her kimono...

Betty-sensei draws a blind Japanese-style young lady and a troubled violinist exchanging their feelings through sex♪

(Source: DMM, translated)