Mother Yukari receives news that her son Takeshi has been injured in a traffic accident, leaving him unable to walk. Fortunately, his life is not in danger, but his physical limitations restrict his daily activities. As Yukari cares for her son, she strives to understand and support him emotionally. One day, she notices him attempting to masturbate but struggling due to his injuries, growing visibly frustrated. Seeing his distress, Yukari gently places her hand on his body, seeking to comfort and understand his feelings. This tender touch begins to shift the dynamic between them in unexpected ways.