"I love you" Such words have never held less meaning. Han Jisung has Alexithymia (the inability to identify or describe emotions experienced by oneself or others). When his fellow classmate Kim Song-I knocks on his door one night after an incident, their lives begin to intertwine. Soon Jisung realizes that he might be starting to feel something towards Song-I. Though Jisung does not quite understand what this means, all he knows is that he would do anything to protect Song-I. Anything. Certain topics mentioned may be sensitive to some readers (ex: abuse).