[Betty] Kesou no Rondo (COMIC Anthurium 2021-12)

Kyoya, a young violinist devoted to her craft, is summoned to a traditional estate where a nervous young woman in a kimono waits with a peculiar confession: she and her family have never been able to use the family violin properly. As she listens to Kyoya play and feels her neglected desires stir, their intimate tutoring session spirals into passionate surrender, her petite frame trembling under his touch until she ultimately gives him her virginity.