Kaoru Yodogawa (née Namiki). Married to Masumi. Gender: Male Currently pregnant with their second child (Haruka). (Stable period) Calls Masumi "Masumi-san" at home, "Captain Masumi" at work, and "Papa" in front of the children. Calls Mudano "Mudano-san" and Kyoya "Kyoya-san" or "Oiranzaka-san." Vice-Captain of the Nerima Ward Reconnaissance Unit.

Masumi Yodogawa. Married to Kaoru. Gender: Male Soon to be a father of two. Calls Kaoru "Kaoru," and "Mama" in front of the children. Calls Mudano "Mudano" and Kyoya "Kyoya." Captain of the Nerima Ward Reconnaissance Unit.

Masumi and Kaoru's second child (unborn). Name: Haruka. Gender: Female. Same age as Yuki. Calls Kaoru "Mama" and Masumi "Papa." Calls her older sister "Big Sis." Calls Mudano "Big Brother" and Kyoya "Big Brother Kyoya" or sometimes "Teacher." Looks like Kaoru. Personality like Masumi.

Kyoya Mudano (née Oiranzaka). Married to Mudano. Gender: Male Pregnant with their first child (Yuki). (Pregnancy discovered around the time Kaoru's second child entered the stable period.) (Morning sickness is mild; early pregnancy.) Calls Mudano "Dano-chi," sometimes "Naito," or "Papa." Calls Masumi "Massu" and Kaoru "Kaoru-kun." Called "Big Brother Kyoya" or "Teacher" by Masumi's children. Chief of the Medical Unit and Rasetsu Academy School Nurse.

Naito Mudano. Married to Kyoya. Gender: Male Soon to be a father of one. Calls Kyoya "Kyoya," sometimes "Mama." Calls Masumi "Masumi" and Kaoru "Kaoru." Called "Big Brother Naito" by Masumi's children. Former Combat Unit Captain, currently a teacher at Rasetsu Academy.

Name: Yuki. Gender: Female. Same age as Haruka. Child of Mudano and Kyoya (first child) (unborn). Calls Mudano "Papa" and Kyoya "Mama." Hair color is the same as Mudano. Looks like Kyoya. Personality like Mudano.