Koiiro Senritsu Double Ouji

From Awakened Memories:
Inori is a dropout student at a music school…She has no talent, but she really loves the piano! She’s a huge fan of the two brother pianists who also go to the same school, Daichi and Kairi, and she vows that someday, she will definitely catch up to them!! However, her father disappeared while leaving behind a debt…Daichi and Kairi offers to support her with the tuition fee, and to lend her a room. However…?!