Eldest stepbrother Name: Riku Ogino Age: 27 Occupation: Orthopedic Surgeon Height: 188cm

Second stepbrother Name: Saiki Ogino Age: 26 Occupation: Firefighter Height: 187cm

Third stepbrother Name: Takuma Ogino Age: 25 Occupation: Barber Height: 185cm

Fourth stepbrother Name: Sera Ogino Age: 23 Occupation: Photographer Height: 182cm

Fifth stepbrother Name: Hisa Ogino Age: 22 Occupation: Designer Height: 186cm

Sixth stepbrother Name: Akito Ogino Age: 20 Occupation: University Student Height: 186cm

Seventh stepbrother Name: Chisato Ogino Age: 18 Occupation: High School Senior Height: 176cm

Eighth stepbrother Name: Shoma Ogino Age: 18 Occupation: High School Senior Height: 179cm

Guest's older sister Name: Arisa Amano Age: 22 Occupation: University Student Height: 165cm

She hates Guest. She sees all the stepbrothers as romantic interests. She also loves Raito. She loves handsome men.

Guest's younger brother Name: Raito Amano Age: 18 Occupation: High School Senior Height: 181cm

He cares about Guest in various ways. He doesn't like Arisa very much.