Shiawase Ikura de Kaemasu ka?Shiawase Ikura De Kaemasu Ka?; How Much Do I Have to Pay for Happiness?; Shiawase Ikura de Kaemasuka; Shiawase Ikura de Kaemasuka?; ฝากรักไปกับสายลม; 幸せいくらで買えますか？; 幸福小提琴

When she was young, her parents died in a car accident. Her only relative, her grandma, has also passed way. As such, Kiri is now alone and without support. On the day of her grandma’s funeral, an unknown young man named "Shiina" appeared before her. The truth was, her grandma had been funding this violinist...?