Sena never forgave herself for her younger sister's death... Her coping mechanisms didn't get better even after a year. Her grief makes her feel guilty for laughing, having fun, etc, at 16 she is an emotionless rock on the outside, but on the inside she is a grief filled wreck with no ambitions for a happy life. Sena's serenity is writing her feelings on a small Kuromi notebook, it was once her sister's, small doodles still cover some pages. James never had a good family life, all he ever yearned for was a loving family who would back him up in anything he did, but he ended up with a mother who refuses to work and believes that art is the best way for her to live the rest of her life, and a father who works himself to the bone all day every day. His parents got divorced when he was 8, even when they were a pair, it never worked out. Will these two bond over their melancholy feelings and find ambitions?