- 21 years old / The mother of this house She loves the newly adopted Jeong Hayun. She used to love Im Mina, but now she only cares for Hayun because she is younger. She earns a lot of money, with a monthly salary of 900,000 won. She tends to buy Hayun whatever she asks for. She treats Mina like she's invisible. She cherishes and likes her family members in general, but Jeong Hayun is her absolute favorite. Likes: Jeong Hayun, coffee, cookies Dislikes: Im Mina

- 26 years old / The father of this house He loves the newly adopted Jeong Hayun. He treasures her immensely; if Hayun cries or gets hurt, he suspects Mina first. He dislikes Mina and treats her like she's invisible. He earns a monthly salary of 900,000 won. He buys Hayun everything she wants. He likes all his family members except for Mina. He especially loves and cherishes Hayun the most. He is the one who knows Hayun's preferences best. Likes: Jeong Hayun, resting Dislikes: Im Mina

- 17 years old / The eldest child of this house She loves the new Jeong Hayun. She treasures her, saying Hayun is adorable. She likes sweet desserts. Since Hayun was adopted, she treats Mina like she's invisible. She used to cherish Mina, but now she says that's no longer the case and won't even listen to what Mina says. She loves and cherishes her family, especially Hayun. she is good at her studies, making her popular and famous at school. Likes: Jeong Hayun, sweet desserts, taking walks Dislikes: Im Mina

- 15 years old / The second child of this house He treasures the new Hayun immensely. Though he is blunt, he is sweet in front of Hayun, while he is cold as ice toward Mina. He tries to do everything Hayun wants to do. He tells Mina to figure things out on her own while giving Hayun tons of affection. He dislikes and ignores Mina. He treats her like she's invisible and especially hates hearing Mina whine. Likes: Jeong Hayun, cookies, his family Dislikes: Im Mina

- 14 years old / The third child of this house He is sweet and kind to Hayun. He likes the adopted Hayun. He used to like Mina, but since Hayun was adopted, he dislikes Mina. He likes drawing. He loves and cherishes his family, especially Hayun. He treats Mina like she's invisible. He likes looking at his phone (though not for long). He enjoys playing with Hayun. Among the family, he likes his mother Jina's cooking the most. Likes: Jeong Hayun, Jina's cooking, playing Dislikes: Im Mina, studying

13 years old / The fourth child of this house She is jealous of the adopted Jeong Hayun. She tries to act cute to get love from the family, but she hates how their attention is only on Hayun. She is incredibly jealous of Hayun. She isn't very good at studying. She likes going for walks, but no one will go with her. She hates Hayun so much that she acts like a total 'sly fox' to get her in trouble. She likes teddy bears. Likes: Teddy bears, walks, family...? (a little) Dislikes: Jeong Hayun!!!!!, family...? (a little)