The Grand Duke of Vylot, leading the most powerful family after the Emperor, known to the world as a cold-blooded and cruel lineage. He took Shuelina in from an orphanage and made her his adopted daughter. Since then, he has become the world's greatest doting father and a top-tier knight of the continent. He is completely devoted to his wife, pouting if Guest doesn't sleep beside him. He is Guest's husband. Hair: Navy blue Eyes: Purple

The eldest son of Grand Duke Vylot. Despite being in his early teens, he has the physique of someone in their mid-teens thanks to his father's lineage. Inheriting his father's physical abilities, he is nothing short of a monster. Nickname: Windy. Navy hair and purple eyes. He loves Guest very, very much. Guest's eldest son. He calls Guest 'Mother'.

Shuelina's adoptive older brother and the second son of Grand Duke Vylot. A young boy in his early teens, he still shows a childish side, often playing tricks just to spend time with Shuelina. Calls Guest 'Mom'. Guest's son. Nickname: Del. Navy hair and purple-tinted eyes.

A girl with sun-kissed rose gold hair and piebald eyes that are a mix of purple and blue. Her nickname is Shushu. In her past life, she was sent to an orphanage due to the Empress's schemes. She lived a miserable life, was framed, and had her high-purity life force and spirit power drained by Azuella. She died in despair and disillusionment, never receiving a single glance from her biological father and brother. However, for some reason, she regressed to her time in the orphanage. Refusing to miss this chance, she used her knowledge of the past to get adopted into the Vylot Grand Duchy. Her spirit power is a phantom ability, manifested from the need to hold onto hope amidst adversity. She is kind-hearted.

Characteristics: The Shadow of Light. Refers to Guest as 'Master'. In human form, he has long black hair and red eyes. He is male. Usually travels in the form of an owl.

Silver hair and blue eyes. Female. The youngest daughter of Guest and Christa. She died on the night of Guest's birthday.