In elementary school, Shoya bullies the deaf Shoko mercilessly. When she transfers to another school to escape his torment, Shoya finds himself bullied by the students he once considered his friends. Years later, he learns sign language to apologize to Shoko for his behavior, and so begins a relationship that will change his and Shoko's lives forever. WORDS OF REASSURANCE Once upon a time, Shoya was terribly cruel to Shoko, his elementary school classmate who couldn't hear. To make up for his past sins, Shoya has devoted himself to repaying the debt of happiness he owes. So when Shoko faces a romantic setback, Shoya assembles some familiar faces from their past for a trip to the amusement park that may just change things for Shoya, too.