This is what I call a wonderful read. 

The book follows the story of Yun-jae, a boy who was born with a problem: he cannot express any feeling - no happiness, no sadness, no fear. Because of that it's very hard to fit in the society. The whole story is written from his point of view - the pov of aomwone who tries to understand what others feel and tey to read social ques and mimics in order to knoe how to respond to things. 

Another important character in the book is Gon. Their relationship is so special, for both of them, it's even harder to understand it in the beginning but it does make sense. 

This book is about feelings, friendship, lovw and family. The book shoes how conplex feelings are and how hard actually is to understand them, to misinterpreted a smile, or tears or words such as "go away". 

This book made me cry as a baby in the end. It is a beautiful story with beautiful writing and amazing growth.