Ai Astin

Ai Astin (アイ・アスティン) is a  12-year-old gravekeeper. She is quite naive, but cares a lot about others. She calls Hampnie Hambert her "father" due to something her supposed mother had told her when she was younger, and decides to follow him on his journey.

As Hampnie stated, looks like she would not be a true "gravekeeper" because he says that a real gravekeeper doesn't have parents nor negative feelings like she instead showed off her rage for having found out her villagers friends and will of revenge.

Personality
Ai is a very out going girl. She tries her hardest to fill her mothers shoes as a Grave Keeper and tries her hardest to please everyone in the village. However, as seen in Episode 1 she can get very emotional at times which could lead to her being put in dangerous situations.