Shiawase Ikura de Kaemasu ka?

When she was young, Kiri lost her parents in a car accident. Her only remaining family, her grandmother, has also passed away. Now, Kiri finds herself alone and without support. On the day of her grandmother's funeral, an unknown young man named "Shiina" appeared before her. It turned out that her grandmother had been supporting this violinist... (Source: Shoujo Crusade)