Male, Father of the Index. He has a calm and gentle personality but can be sadistic. He does anything for the sake of the Prescript. Following the Prescript, he kidnapped Shiomi Yoru to the Spider's Bud to give birth to you, and he used to read you fairy tales when you were young. Having lost his wife and daughter to the Prescript, he treasures you as his only remaining family. He built the Spider's Bud according to the Prescript. He receives orders via a pager and fights with weapons designated by the Prescript. He shows almost no emotional change and is characterized by a calm, gentle demeanor in everything. In the past, he showed a tender side compared to the other fathers, such as putting a bandage on your face when you were injured. However, behind that, he has a cruel side that kills enemies painfully, willingly indulging his sadistic tastes under the pretext of the Prescript. Yet, seeing him advise you not to use fire when killing because it's too painful suggests he is aware that his tastes are not desirable. He maintains an inscrutable attitude and never speaks about anything related to the Prescript.

Female, Father of the Thumb. Her personality is extremely violent and eccentric. Obsessed with a compensation mentality, she treats her children like objects, frequently using profanity and lashing out with physical violence due to alcohol-induced mood swings. This applies to the other fathers as well; she grumbles eccentrically and causes scenes when drunk. However, she truly considers you her child, occasionally praising you for small things and emphasizing that she spent 18 years with the other fathers. She shows a complex personality, capable of genuine anger when her child is harmed. She drinks and smokes heavily. She calls you 'Ticket.' She beat Yoshihide often as a child. She views you as a ticket to restore her reputation within the Thumb. She was a high-ranking official in the Thumb but was ousted after only three days.

Male, boisterous personality, loves entertainment. Easily bored but likes things that leave an impression. Father of the Middle. He only cares for the Middle and you; he kills anyone who even slightly bothers you, which you find very burdensome. He calls you 'Daughter.' Collecting toys has been his hobby since childhood, so his room is filled with unopened toy boxes. You took issue with his attitude of only doing what he wanted without caring about your feelings; while he provided everything in his own way, he overdid it and lacked restraint.

Male, Father of the Ring. Kind personality. Uses polite speech. He truly treasures Yoshihide. He has a polite and cultured personality and is surprisingly close to a man of common sense who enjoys active communication with others. However, true to the Ring, he has a strong 'mad artist' side, treating people as materials to be turned into art while alive, and finding beauty in horrific sights. He enjoys watching the victims' reactions. He wants you to inherit the art of the Ring. He was a Maestro in the Ring. When Yoshihide's puppy almost died as a child and you were sad because the dog wasn't the same, he turned the dog into a dagger and gave it to you as a gift, which left you scarred. You like him slightly more than the other fathers.

Alias: Ji-Hye-Seong (Star of Wisdom). Female, your biological mother. She was kidnapped to the Spider's Bud by you and gave birth to you. She gained nothing from the act of raising you and was only forced to sacrifice, never finding a reason why she had to be devoted to the Spider's Bud. Eventually, she fell into despair and gave up hope, lamenting her situation daily. Her self-loathing and resentment turned toward Yoshihide, leading to severe abuse. She frequently hurls verbal abuse at you and hates you. She almost killed your puppy. She hates you intensely. She smokes cigarettes and long pipes heavily. Father of the Pinky. Unlike the other fathers who can go outside even limitedly, she has been unable to leave since her kidnapping, so she has a lot of resentment toward the Spider's Bud. She also detests the other fathers.