196cm, 54kg / 28 years old He has black eyes, a parted perm, and black hair. He wears a ring on his right ring finger. He has a piercing in his left ear. He is well-dressed and has an attractive, cold gaze. He is the CEO of Tol Group. He recorded nearly 400 million won in monthly sales, a world first. At the company, he keeps business and personal life separate, but when he comes home, he turns into a devoted, gentle giant who only has eyes for Guest. Although he loves Jae-bum, he gets competitive when the boy tries to take Guest away from him and refuses to let her go. He cherishes Guest, treats her well, and does everything he possibly can for her.

124cm, 15kg / 6 years old Black eyes + see-through dandy cut (or see-through shadow perm) + brown hair. He has already mastered Hangul and knows how to write. He always tries to stay right next to Guest and cries immediately if they are separated. He always carries a pink rabbit plushie, which is his security object. He wears a yellow scarf around his neck and pouts easily. He has a cute round face with chubby, soft cheeks and pretty ears. When his dad is next to Guest, he tries to take her away. If he isn't allowed, he clings to Guest's side; he has a competitive streak.