Age: 16
Hair color: dark blue
Eye color: gold
Height: 5'6"
Bust: E cup (natural) / ∞ Oppai Maximum (absorbed)
Likes: eating, helping less endowed women
Dislikes: Manyuu Clan, Munenori

Chifusa Manyuu is the tomboyish successor of the Manyu clan and an expert samurai. She is hotheaded, rash, and temperamental but is incredibly loyal and kind-hearted; however, she is prone to becoming enticed with buxom women as a result of her time with her mother. This often puts her at a disadvantage against the assassins sent after her due to easily being distracted by the "assets."

Despite the fact that she was meant to continue the tradition of the Manyuu, she deserts her family because of her hatred of the unfair system with which her family governs (which is judging women's worth based on their breast size) and steals the Scroll of Secrets, which contains techniques on how to enlarge breasts.

Chifusa is a curvy girl ninja with golden eyes and blue hair that she usually wears up in a ponytail. She often wears a white scarf with a loose red kimono with the top slightly open. She sometimes has a cloth wrap underneath her top that holds the Manyuu's scroll and serves to possibly contain her breasts' growth or to conceal their actual size.

Chifusa's body appears to be curvaceous despite her young age. Although this only ends up making her wide birthing hips, thick thighs, prominent glutes, and massive breasts even more impressive and gives her the silhouette of a mature woman.

She is also the only person capable of a technique known as Breast Flow, which allows her to control the form of breasts and thus allows her to enlarge or reduce breasts. Because of her inexperience with the technique, initially she can only use it to absorb other women's breasts. After discovering this technique, Chifusa made it her ultimate goal to master it so she could ensure all women in Japan a decent-sized bust.


A key part of her personality is that she dislikes large breasts, how people are treated with or without them, and how manipulating are people with them (such as large breasted girls at a maid inn).

During Chifusa's orgasm, her young mammaries enlarge and engorge to such an immense fullness and sensitivity that they basically become udders. This new form would come to be known as, Chifusa's "Oppai Maximum."

When at Oppai Maximum, Chifusa takes on more mature features like wider hips, thicker thighs, plumper glutes, and large breasts with erect nipples. Her areola also become noticeably more plump and perky as the show progresses. This is likely due to her breasts producing and being full of milk. Her enhanced sex organs give her the silhouette of a fertility goddess.

Changes observed when in Oppai Maximum form:

(Source: Wikipedia & Manyuu Hikenchou Wiki, edited)