Deaf Girl Fell In Love with her childhood bully

Anime Movie Recap Summary: Ishida is a high school student who has been living a suffocating life for the past few years. He quits his part-time job and sells all his books, clothes, and mattress. With all the money he received, Ishida put it next to his mother. Afterward, he goes to a bridge and stands on top ready to take his life. But why would a young boy go to such lengths? What is it he experienced that made him think about taking his life?