Mizuha Kiryuu is a main heroine in the light novel and anime series Hensuki: Are You Willing to Fall in Love with a Pervert, As Long as She’s a Cutie?, serving as the adoptive younger sister and love interest of the protagonist, Keiki Kiryuu.
Name: Mizuha Kiryuu
Gender: Female
Birthday: March 3
Height: 157 cm
Affiliation: Calligraphy Club
Family: Adoptive younger sister of Keiki Kiryuu
Work of Origin: Light novel and anime series Hensuki: Are You Willing to Fall in Love with a Pervert, As Long as She’s a Cutie?
On the surface, Mizuha is the textbook “perfect little sister.”
She is attentive, considerate, and always ready to listen to Keiki Kiryuu’s worries.
She is very affectionate and openly clingy with her brother.
She often asks him to pat her head and happily soaks up his attention.
Mizuha has a strong cleanliness streak that borders on obsessive.
The house is always spotless under her watch, and she handles every kind of household chore with ease.
Despite this ideal image, she hides a highly perverse side.
This contrast between “perfect domestic angel” and “shameless exhibitionist” is one of her defining character traits.
As the story progresses, a possessive and jealous side also emerges.
She can display yandere-like tendencies, especially when it comes to other girls around Keiki.
Mizuha lost her biological parents when she was very young.
After their deaths, she was adopted into the Kiryuu family and became Keiki’s adoptive sister.
Growing up in the same house, she developed deep feelings for Keiki.
These feelings are romantic rather than familial, and she has admired him as a man for a long time.
To everyone else, she appears to be a well-bred, polite, and reliable younger sister.
Only a select few—and eventually Keiki himself—learn about her hidden sexual quirks.
Behind closed doors, Mizuha is an unapologetic exhibitionist.
She obsessively takes photos of herself in only her underwear, creating a private collection of her own near-nude images.
For her, going to school without wearing panties is an everyday occurrence.
This “no underwear to school” habit is portrayed as completely normal in her private life.
Once her perverted side is exposed, her actions escalate dramatically.
She becomes bolder with Keiki, taking initiative in ways that leave him flustered and confused.
She engages in aggressive nightt
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