Mama's Violin

(from ebookjapan):
Manami and her mother were leading a poor but happy life together. One rainy night, however, Manami's fate changed drastically! After bringing home a furoshiki containing a mysterious five million yen, Mama fell ill with tuberculosis and disappeared suddenly from the hospital. Maninami, who is in grief with the violin given to her by her mother, is struck by numerous mishaps after that. This is the tumultuous story of Manami, who dreams of becoming a violinist, undaunted by any difficulties!