One day, a dog name Lea shows up at Seul Gi's house, who is a loner struggling with mental health. Lea has a speaker on her collar that can process her thoughts into words, allowing her to talk. One day, a dog name Lea shows up at Seul Gi's house, who is a loner struggling with mental health. Lea has a speaker on her collar that can process her thoughts into words, allowing her to talk.