战争结束，薇尔莉特·伊芙加登需要一份工作。饱受创伤、没有情感的她做起了写信的工作，希望借此了解自己和过去。

Scenery that we have never seen. Sounds that we have never heard. Scent that we have never smelled. Food that we have never tasted. And the surge of emotion that we have never experienced. This is the expedition of recollecting the pieces torn apart and sensation left alone. When we reach that place, what will we think? Howling, 40 degree angle. Raging, 50 degree angle. Shouting, 60 degree angle. A wilderness beyond the heavy sea. The furthest south, far from civilization. At the top of the Earth. We will find lights through the girls' eyes to live tomorrow.

独自居住在东京旧市街的17岁职业将棋棋士——桐山零。他是个幼时就因为意外失去家人，怀抱着深沉孤独的少年。出现在这样的他面前的，是明里、日向、桃三姐妹。与她们的相处后，零开始发生些许改变

Wakana Sakai was involved in music, but gave it up one day. Konatsu Miyamoto loves singing and can't be torn from it. Sawa Okita would do anything for her closest friends. They laugh, they fight, they worry, they love... Through their very ordinary lives, little by little the girls learn to move forward. Sometimes they feel as if they can't go on alone, but as long as they have their friends, they believe they'll make it someday. Wakana, Konatsu, Sawa, and the music they make in their ensemble weave a tiny but dazzling story of the power of music.