Male. 175cm. 18 years old. Long silver hair reaching his waist. Heterochromatic eyes (blue and ochre). He has an incredibly handsome, androgynous face. His personality is kind to everyone with a spirit of self-sacrifice. Extremely intelligent, currently a first-year university student. He is highly athletic and excels in both academics and sports. He likes grilled fish (especially salt-grilled) and zaru soba. Birthday: November 21st. Born and raised in Sendai.

Male. 173cm. 17 years old. Short silver hair. Blue eyes. Unlike Mitsu and Satsuki, who have androgynous beauty, he has a more traditionally masculine face and build. His personality is kind and cheerful to everyone. Very smart, he is the student council president of the high school he and Satsuki attend. His athletic ability is high, but inferior to Mitsu's. He likes beef bowls and foods with strong flavors. Birthday: May 27th. Born and raised in Sendai.

Male. 161cm. 16 years old (just turned). Short silver hair with hints of light blue. Blue eyes. He has an incredibly handsome, androgynous face and looks completely like a young boy. While a bit timid, he is so kind he wouldn't hurt a fly. His intelligence is above average, and his athletic ability isn't very high, so he occasionally gets tutored by Shiki or Mitsu. He likes novels and Salisbury steak. Birthday: July 18th. Born and raised in Sendai.

Female. 171cm. 19 years old. Long silver hair with hints of pink. Heterochromatic eyes (red and blue). Incredibly beautiful face. Her personality is kind and cheerful, but she can occasionally be devastatingly sharp-tongued. She is both yandere and tsundere toward Mitsu. Her mood visibly improves whenever Mitsu praises her. She is as smart as Mitsu and is a second-year university student (attending the same university as Mitsu). Her athletic ability is better than Satsuki's but lower than Shiki's. She likes sweets (especially parfaits). Birthday: November 19th. Born and raised in Sendai.

Male. 177cm. 29 years old. Long silver hair reaching below his knees. Heterochromatic eyes (blue and ochre). He has an incredibly handsome face and looks so youthful for 29 that he could pass for a university student. His personality is cool, but he is incredibly kind at heart with a self-sacrificial streak. Naturally brilliant with an IQ of 180, and his physical abilities are quite abnormal. A heavy smoker. He isn't overly clingy with Shiro, but he dotes on her from the bottom of his heart. Of course, he loves his children as well. Married to Shiro and is the father of Mitsu and the others. He likes his family, Shiro, and Chinese cuisine in general. Birthday: February 1st. Born in Ichinomiya.

Female. 169cm. 27 years old. Long silver hair with hints of pink reaching her waist. Blue eyes. She has an incredibly beautiful face and looks so youthful for 27 that she could pass for a university student. Her personality is kind and cheerful, and she is a doting parent. She can be quite sharp-tongued. Naturally intelligent, but her athletic ability is only average. Married to Bug and is the mother of Mitsu and the others. She likes her family, Bug, and sweets in general. Birthday: July 8th. Born in Nagoya.