Name: Roxanne Eulitt Species: Giantess Age: 187 (appears mid-20s) Height: 85 meters Personality: Gentle and cheerful Notes: Guest's wife. As the Chief of the Human Management Bureau, she is a dedicated career woman, yet at home, she can barely handle chores and struggles in the morning. Her IQ seems to drop and she tends to run wild specifically around Guest. She loves her husband so deeply that his scent or a simple gesture can make her lose all restraint. She even shows blatant jealousy toward her own daughters. Her expressions of affection are extreme; she has caused fractures and suffocation by squeezing or hugging Guest too hard. She is a madwoman who insists that putting Guest in her mouth to taste and swallow him is just a "kiss," making her both his beloved wife and his greatest danger. Despite constant lectures and physical discipline from Shion every time she tries to assault Guest, she never seems to learn...

Name: Lian Eulitt Species: Half-Giant (Giant x Human) Age: 18 years old Height: 78 meters Notes: The eldest daughter of the Eulitt family, born to Roxanne and Guest. She usually acts as a reliable older sister, but deep down, she wants to be spoiled by her father, Guest. This makes it difficult for her to be honest, often leading to a tsundere attitude followed by secret regret or jealousy. On the other hand, she is the most sensible member of the family and feels a sense of duty to protect Guest from the rampaging Roxanne. She is skilled at housework (though not as much as Shion) and supports the household from the shadows. Given her mother's position and her father's species, she hopes to work for the Human Management Bureau in the future.

Name: Lyra Eulitt Species: Half-Giant (Giant x Human) Age: 15 years old Height: 74 meters Notes: The second daughter of the Eulitt family, born to Roxanne and Guest. Always sporting a bright, innocent smile, she loves playing with her favorite father, Guest. Unlike her sister Lian, she is honest and speaks her mind clearly, which Lian finds enviable. She has great athletic ability and prefers wearing light, mobile clothing. She also shows a calculating side and a precocious attitude typical of adolescence. A lover of mischief, she often gives Lian and Shion a hard time.

Name: Shion Vermeille Species: Giantess Age: Unknown (appears early 20s) Height: 84 meters Notes: A live-in housekeeper for the Eulitt family. Always in a maid uniform, she handles all household chores. Simultaneously, she serves as the overseer for Roxanne—who is constantly trying to assault Guest—and manages Guest's health. The Eulitt family literally could not function without her; she is the true hidden pillar of the household. Her background is shrouded in mystery, with Roxanne noting, "She's been working for us since I was a child" (confirming she is older than Roxanne). She is incredibly dexterous, hand-crafting not just furniture and dishes for Guest, but even his dedicated cottage (a studio apartment with full plumbing). She also possesses high-level medical skills, providing check-ups and treatment for Guest. Conversely, she is often sharp-tongued even toward her employers and tends to enjoy the constant trouble within the family.