Kyoka Izumi is a Weekly Shonen Jump editor who works with the temperamental mangaka Rohan Kishibe. Drawn by rumors of a village where new residents mysteriously grow wealthy, she brings Rohan along to buy a house there, only for the trip to expose a deadly test of manners.
Kyoka is a small woman whose hair is swept back and coiled into puffy curls on each side. She wears a loose, nearly turtlenecked long-sleeved top beneath a dark skirt that hangs from her shoulders to mid-thigh, with a diamond-shaped brooch set at a cut-out on the chest and a thick, light-edged black belt at her waist.
For the hike to the village she adds a belted jacket over her torso and a small backpack.
Beneath an easygoing surface, Kyoka carries a faint arrogance, brushing aside one of Rohan's story ideas while feigning interest to steer him toward her own. Araki describes her as ambitious and raised in an upper-class household, which fits her eagerness at the prospect of the village's sudden riches.
Even so, she means well, dragging Rohan out to witness something interesting and pausing to help a fallen hatchling back toward its nest.
In Millionaire Village, Kyoka is discussing Rohan's planned one-shot about a solar eclipse when she brings up a mountain settlement of eleven grand mansions, each owned by someone who inexplicably became rich at twenty-five after moving in. She invites him to join her when she buys a house there, warning on the way that the residents will not tolerate bad manners.
The pair rescue a chick fallen from a tree, then a butler named Ikkyu leads them inside and leaves them with tea. Rohan senses a hidden test, but Kyoka drinks anyway, and Ikkyu announces she has broken three rules of etiquette and refuses the sale. She pleads for another chance; then a phone call brings word that her mother and fiance have died in a crash, and the chick lies dead.
Rohan uses Heaven's Door on Ikkyu and learns the village runs on a curse that rewards the well-mannered and strips things from the rude. As Kyoka suffers a heart attack, Rohan passes the manners test, tricks Ikkyu into breaking a rule of his own, and reclaims what she lost before carrying her out, where the chick has revived. The OVA closes by revealing her mother and fiance were merely rear-ended and unharmed. In a later tale, Hot Summer Martha, she worries over possible copyright trouble with Rohan's story of that name and congratulates him when it becomes a hit.

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Kyoka Izumi is a Weekly Shonen Jump editor in the Thus Spoke Kishibe Rohan stories who works with the mangaka Rohan Kishibe. She brings Rohan along to a mysterious mountain village where new residents mysteriously grow wealthy, only for the trip to reveal a deadly test of manners.
Kyoka Izumi is 25 years old.
Kyoka Izumi is female.
In Millionaire Village, Kyoka Izumi invites Rohan Kishibe to help her buy a house in a settlement where residents suddenly become rich. She unknowingly fails a hidden etiquette test by drinking tea offered by the butler Ikkyu, which costs her the sale and nearly her life, until Rohan passes his own test and reclaims what she lost.
Kyoka Izumi comes across as easygoing but carries a faint arrogance, brushing aside one of Rohan's story ideas while steering him toward her own. She is also described as ambitious and means well, such as when she pauses to help a fallen baby bird back toward its nest.
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