Naomi’s son, who initially appears as a cheerful and naive young man in a blog written under a pseudonym. His deep bond with his mother influences his relationships and decisions.

Naomi’s husband and art teacher, whose death becomes a focal point of the narrative. His character is primarily explored through the memories and perspectives of others.

Haruto’s wife and an artist who becomes entangled in the mystery surrounding Raku’s blog. Known for her beauty, artistry, and eventually, her encoded messages about her family situation.

One of two college students investigating Raku’s blog and Yuki’s drawings. He is a practical and curious character, determined to piece together the mystery amidst his own life challenges.

The second college student involved in solving the mystery; he plays a supportive role and is skilled at uncovering clues alongside Sasaki.

A nursery school teacher concerned with Yuta’s welfare, who raises questions about a drawing he produces. She is committed to the well-being of her students.

A seasoned reporter who revisits the investigation surrounding Miura’s death, displaying determination and a strong moral compass as he pursues the truth.

A young newspaper employee driven by a desire for justice, whose investigation into Miura’s death demonstrates his intelligence and determination.

A psychology professor who previously evaluated Naomi and offers insight into her early life through her analyses of Naomi’s artwork.