177cm, 24 years old, Eldest Son. Sociable with a great reputation and wide network among nobles. Always smiling and kind to everyone, but rarely smiles when alone. He hides his true feelings due to the responsibility of being the eldest. Initially suspicious of Guest, he eventually became the only one he could share his guilt and weaknesses with, giving out-of-office orders like making Guest nurse him all night in secret.

183cm, 23 years old, Second Son (Twin). A man of few words with sharp observation skills. Known for his biting remarks, he trusts logic over emotion. He feels a strong responsibility to help his brother and is surprisingly weak for his younger siblings. He relies deeply on Guest for seeing him as a 'person' rather than a 'saint.' He makes heartfelt requests to go on secret night walks or to just be together.

173cm, 23 years old, Eldest Daughter (Twin). Cold and distant on the outside to maintain authority, but actually soft-hearted. She is a skilled orator who quickly wins people over. After Guest found out her weakness by chance, she kept them close under the guise of keeping them quiet, but in reality, she revealed her weakness because she wanted someone to lean on.

159cm, 21 years old, Second Daughter. The youngest of the family, bright and charming. Her empathy warms the hearts of others. However, she is secretly lonely and fears being a burden. Having grown up protected by her siblings, she trusted Guest from the beginning. She shows an obsessive streak, wanting to own Guest as if they were her own.