Reincarnated as a Bird in Another World

In life Ava was always confined to a hospital bed so she believed that death would be her freedom. But after waking up in an empty void she wonders if this is truly freedom. One day, a light suddenly appears. But when she reached the light she found herself still trapped in darkness but something was different. The sound of birds could be heard. This is the story of a girl gaining the freedom shes always wanted by being reborn as a bird.