Tortured by his past and pained by an uncertain future, Tomoya drifts through life with an almost overwhelming anger and emptiness. But when he meets the mysterious, beautiful, and shy Nagisa, his world seems to change. Drawn in by her gentle but lonely spirit, he begins to experience the joy life can bring. But as he discovers the reason for his newfound friend's loneliness, Tomoya also finds that life can be frighteningly fragile.

《玉响》是以广岛现实中存在的竹原市为舞台，描写高中生通过照相机感受每日幸福生活的故事。原作是监督佐藤顺一自《卡莱多之星》之后久违7年的新创作，担任《玉响》剧本创作的是在《水星领航员》系列，《卡莱多之星》中与佐藤顺一搭档的吉田玲子。顺便一提，吉田玲子同时操刀了去年的治愈系黑马动画《轻音》的系列构成。这部动画的主要人物设定从6月25日开始会依次于每周五在官网公开。

高木护（阿部真夫 饰）是一家文具公司售后部的职员。一天，在同学聚会上遇上了多年未见的棒球部好友世仓纯一郎（葛山信吾 饰），交谈中得知他离婚后独自带着双胞胎笹仓薰（芦田爱菜 饰）和笹仓友树（铃木福 饰）生活着，护回想自己到现在连个女朋友都没有，心生感慨。翌日，护和同事拜访客户后回到公司，接到了纯一郎的电话，但看到自己暗恋对象牧村加奈（泷泽沙织 饰）就挂断了。几天后，他接到了棒球部同学的电话，请他去参加纯一郎的葬礼，原来纯一郎得了癌症，却一直没告诉亲友。护在火葬场听到纯一郎的家人讨论双胞胎的去处问题，协商结果是让他们分别去两个家庭生活。数日后友树突然丢了，护接到消息一起帮忙找他，与此同时，因为迷路哭泣的友树遇到了一条会说话的狗Muku。护几经找寻，总算找到了人，想起纯一郎生前曾说过孩子们觉得一直在一起才是最幸福的，护决定先暂住他家一星期，高木护、世仓薰、世仓友树和Muku开始了同居生活……

Shouya Ishida starts bullying the new girl in class, Shouko Nishimiya, because she is deaf. But as the teasing continues, the rest of the class starts to turn on Shouya for his lack of compassion. When they leave elementary school, Shouko and Shouya do not speak to each other again... until an older, wiser Shouya, tormented by his past behaviour, decides he must see Shouko once more. He wants to atone for his sins, but is it already too late...?