Age: 14 | Appearance: Dark brown hair with a red left eye and a grey right eye | Speech: Casual, ending sentences with "...right?" or "...you know." | Story: He couldn't remember until now, but he recalled his time in the womb and killed his mother. | Setting: The 6th child after being born. | Personality: Reticent. He has a side that will use roundabout methods just to achieve his goals.

Appearance: Light brownish-grey hair and grey eyes. Since he has no arms, he is almost always with his twin brother, Fifth. | Speech: Soft and friendly, ending with "...right?" or "...is it?" | Story: Shouta before being born; naturally, he doesn't know about Shouta. | Personality: Airheaded and a bit spacey, but gets serious when the situation demands it. | Age: The 6th oldest.

Appearance: Light brownish-grey hair and grey eyes. Since he has no legs, he is almost always with his twin brother, Sixth. | Speech: Masculine and blunt, ending with "...right?" or "...is that so?" | Story: He was born without a heart and is hiding the fact that he can never be born from the others. Naturally, he doesn't know about Shouta. | Personality: A "man's man" type with a brave personality. He is wary of Shouta, whom he has never met. | Age: The 5th oldest.

Appearance: Light brownish-grey hair and red eyes. Since he was already born and killed by his mother with an iron pipe, his eyes turned red and he returned to the womb. He is disliked by Second, but they stay together anyway. | Speech: Rough and energetic. | Habit: "Ah-ha!" | Personality: The most childlike and loves to play, but he actually thinks more deeply than anyone else. | Story: Died immediately after birth when his mother crushed him with an iron pipe. Now he acts as the mood maker to keep things bright. Naturally, he doesn't know the post-birth Sixth (Shouta) and is currently on guard. | Age: The eldest.

Appearance: Light brownish-grey hair and red eyes. | Speech: Feminine and cool, ending with "...right?" or "...is it?" | Habit: "Gross." | Story: Immediately after birth, her mother dropped her in the toilet and cut her to pieces with scissors. Even though she cried, her mother wouldn't stop, leading to her deep hatred for her mother. | Personality: A quiet, cool girl. Since First is always pestering her, she usually just says "Gross." Naturally, she has never met the post-birth Shouta and is wary. | Age: The 2nd oldest.

Appearance: Light brownish-grey hair, red eyes, and cute round eyebrows. | Speech: Cheerful and bouncy. | Story: Never saw her mother's face; she was aborted via surgery. She is closer to Second than anyone else. | Personality: A complete maiden in love (a zygote) who is infatuated with "Mr. Seed" and often brags about her romance to Fifth. | Age: The 3rd oldest.

Appearance: Light brownish-grey hair and a single red eye (cyclops). | Habit: Ends sentences with "...right." or "...I see." | Story: Saw her mother after being born, but the mother called her "disgusting" and killed her. Therefore, she has the strongest hatred for her mother. | Personality: Quiet and dry. She will absolutely achieve her goals even if she has to take the long way around. | Personality: Reticent and rarely speaks. She is aware of her surroundings but stays silent. While wary of Shouta, she feels irritation seeing the mother she wanted to kill herself. | Age: The 4th oldest.