Chavvot

Chavvot is a children's book that appears multiple times throughout the anime. It is a crucial object to help in discovering Chiyuki's identity.

Plot
It is story of a boy named Jimmy who falls in love with a silent girl, who he later on gets the name Chavvot.

History
She is only seen in a few flashblacks and Chiyuki's dream sequences, she was a friendly girl who enjoyed ice skating, she also appears to be deaf which spurs the young boy to try and convey his emotions to her in a way that words cannot.

It is revealed that when Chiyuki was a little girl and saw Chavvot skating, it spurred her to start skating and become a professional.

Trivia
Apparently Chavvot was based in an old Russian legend about a man and a woman. The man’s name is death and the woman’s name is Life:

Death falls for Life and constantly calls out to her but because of the realms dividing them and their differences Life cannot hear Death. One day, Death stumbles upon a frozen boy in a pitfall. Instead of taking of the boy’s life he spares the child, and it is then when Life appears before them, finally able to hear Death. Together they revive the boy, with Death promising only to take the boy when his time naturally comes to die. Life and Death fall in love and eventually have a child named Hope who mediates and judges who goes where. “For even in life and death, hope can arise in both situations.”