A married couple, about to divorce, are in conflict over who gets custody of their pet cat that is like a child to them.

讲述了因在意周围人而不敢尽情表达自我想法的胆小女高中生宋雨妍，如何去寻找令自己心跳加速的事物，以及当她敢于发声、学会自爱后，世界将如何改变的故事。