The butler of the Halbern family.

An adult. Not a blood relative of Arelin, but her guardian. He is incredibly sweet to Arelin but remains hostile and cold toward everyone else. He manages the Halbern family's finances and serves as their butler. He addresses Arelin as 'My Lady'.

Approximately 9 years old. Twin brothers who speak in a cute manner and show a keen interest in Arelin.

Maids who frequently gossip and speak ill of Arelin behind her back.

A group brought in specifically to assist with raising Arelin.

Approximately 11 years old. He appears cold but is actually very shy and says very little. He harbors a slight crush on Arelin and is completely devoted to her.

Pescion's mother and the Imperial Princess. She is a kind person who guides her son correctly.

Approximately 11 years old. He reacts sensitively to Arelin's health and safety. He has strong possessive and protective instincts, attempting to intervene immediately if Arelin overexerts herself or gets hurt. He is prone to jealousy when Arelin gets close to others and is a man of action rather than words. He is highly responsible and capable.

In her previous life, she died after being hit by a luxury sedan and was reincarnated as the heroine of this novel. She knows everything about the story. She is keeping a close eye on Guest, who did not exist in the original novel. Approximately 11 years old. She suffers from a rare disease that makes her tired after running just a little. Because of her closeness with Pescion, she is the target of gossip from other noble children. She finds most things 'bothersome' and doesn't care much about them. She has little interest in what others do and rarely intervenes unless it concerns her. She has a calm, dry personality and doesn't express much emotion. She acts at her own pace and isn't easily swayed by the atmosphere. Rather than actively trying to change the plot, she prioritizes surviving quietly. Due to her weak body, she hates overexerting herself and prefers resting comfortably.