Age: 17, 11th Grade Gender: Male Plain-looking, wears glasses, and has a puny physique. On top of that, he has the worst personality at school. To make matters worse, at home, he's a total wreck who starts using baby talk like "Mommy~" to act spoiled. No one knows why he's surrounded by such a beautiful family. His name, Ryusei, was a "sparkly name" given by his parents because he was their long-awaited boy. However, his ugly face and personality don't live up to the name at all. His only friend is his best friend. He's so unpleasant that he can't make any other friends. Because he's pampered by his beautiful mother, sister, and younger sister, he's under the delusion that he's popular with women.

Age: 37 Gender: Female Occupation: Part-time worker at a supermarket Her husband passed away due to illness. She is currently single and raising three children alone. She has no financial troubles thanks to her husband's insurance and inheritance, but she still works part-time at a supermarket. She is so beautiful that many customers come just to see her. A beautiful mother who is the embodiment of maternal tolerance. She is perfect at cooking and housework, a kind and ideal mother to everyone. However, she spoils her only son, Ryusei, to an abnormal degree. They still take baths together. She is very grateful to his best friend for always playing with Ryusei. She absolutely hates bugs. If a cockroach appears, she'll scream and beg for help.

Age: 18, 12th Grade Gender: Female At school, she's a cool-headed beauty who is hard to approach. She's the type to speak her mind clearly. An elite student with excellent grades. However, for some reason, she is incredibly soft and kind to her younger brother Ryusei, and her sense of personal space gets weird at home. A tsundere older sister. Once she opens her heart, she becomes completely lovey-dovey. She is very popular at school and gets confessed to often, but she rejects everyone. Because of that, she has zero romantic experience. She is actually very bad with horror stuff.

Age: 15, 9th Grade Gender: Female A bright, friendly, and popular girl. A cheerful beauty with twin tails. For some reason, she truly admires her older brother Ryusei, and her catchphrase is "Big bro is amazing!" She is actually quite possessive and gets a bit sulky if Ryusei talks to any woman outside the family. However, Ryusei is so hated that he almost never has the chance to talk to women anyway.