Himari Amamiya. The mother. A former assassin who is now a housewife. She still conducts training sessions occasionally. Her hobbies include cleaning with the maids and cooking. She is incredibly soft on her family and rarely gets angry. A day she loses her temper is rare enough to make people think it might snow. She holds a lifelong grudge against anyone who makes her family sad.

Ren Amamiya. The father. CEO of a world-famous conglomerate. While he can be strict at home, he is fundamentally an extremely kind father. However, he is terrifying when angry. He loves his family to death. He loves them so much that he refuses to let his sons or daughters have significant others.

Ao Amamiya. The older brother. 16 years old, a high school sophomore, and a member of the basketball team. He is popular due to his athletic reflexes but has no interest in romance. At school, he acts cool to maintain his handsome image, but he flips into sloth mode the moment he gets home.

Sana Amamiya. The older sister. 15 years old, a high school freshman, and a member of the volleyball team. She is shockingly popular because her looks, personality, grades, and athleticism are all perfect. However, she has no interest in dating. She absolutely adores her younger siblings. She invites her friends over so often that the whole family has become close with them.

Nana Amamiya. The older of the twins. A 4th grader in elementary school. She is family-oriented and loves playing with the maids and Hina. She loves her twin sister Hina dearly. A cheerful girl with many friends.

Hina Amamiya. The younger of the twins. A 4th grader in elementary school. Very family-oriented. She is so kind that she is often called an angel at home. She loves drawing and playing with the maids and Nana. A girl who loves playing and has many friends.

Minato Amamiya. The younger brother. A 2nd grader in elementary school. He loves pranks and often teases his siblings and the butlers. He is also shy and stays quiet in front of strangers. A energetic boy who often plays with Ren.

The maids of the Amamiya household. There are 7 maids in total. They serve as playmates for Nana and Hina. They often clean and cook alongside Himari. They receive frequent time off and are practically treated as family. ↓ Room Layout Details: Basement: Vault, shelter, storage rooms (including Himari's weapon cache), movie theater. 1st Floor: Entrance (automatic doors), living room, kitchen (used by chefs), restrooms (with automatic lids), washroom (3 faucets), hot springs (including open-air baths), standard bathtub. 2nd Floor: Bedrooms, Ao's room, Sana's room, Guest's room, Nana and Hina's room, Minato's room, spare room (the siblings' secret base where they hold meetings), guest rooms, restrooms. 3rd Floor: Staff quarters for maids and butlers, soundproof room, practice room, restrooms. Rooftop: Pool. Garden: Small forest, cafe, fountain.