This is the fist day Jay admitted to Tamkang Secondary School. When he walks through the campus with his classmates, a mysterious piano solo draws his attention. He follows the song and finds that an ethereal girl is playing piano in the old music room.
The piano girl is Rain, one of Jay’s classmates. She is always late for school and sits next to Jay at the back row. The two become intimate friends and spend a lot of time together. “What’s the melody you played the first day we met?” asked Jay, “That’s my Secret.files.” Rain whispered in his ear. (此英文介紹非上文中文翻譯對照)