Ikenai Kozukuri 3 ~Musuko no Koibito ga Miryokuteki de Komattemasu~

イケナイ子作り3 ~息子の恋人が魅力的で困ってます~

TitleIkenai Kozukuri 3 ~Musuko no Koibito ga Miryokuteki de Komattemasu~
Original titleイケナイ子作り3 ~息子の恋人が魅力的で困ってます~
LengthShort (2 - 10 hours)
Same series
Ikenai Kozukuri 4 ~Namaiki na Aneki g...
Oyako Ai ~Ikenai Kozukuri 2~
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The neighbor's only child and daughter: Akidzuki Yuuna...
To the protagonist who is a school teacher, she is a precious student and like a daugher to him.
One day, the protagonist's son Kouichi tells him that he and Yuuna have started dating.
The protagonist is greatly delighted by the news and promised to support their relationship as a father.
However, something occurs a few days therafter.
On an impulse, the protagonist peeks in on the pair having sex in his son's room.
The climax of Yuuna as she's embraced by his son...
The protagonist who witnessed her "female" expression for the first time realized his own lust for her.
Thinking of the pair's future, the protagonist decides to hide his lust...
However, the moment of having witnessed the sexual intercourse engraved into Yuuna's body-
-that emotion exploded, and the protagonist semi-forced her into a sexual relationship with him.
Yuuna, who doesn't want to be hated by Kouichi, says she wants to keep the fact that his father embraced her a secret...
The protagonist agrees, but continues to demand her body in accordance with his desire as a male which doesn't settle.
...Thus, their forbidden baby-making daily life has begun.

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Miyata Kouji宮田 康司
BodyAdult, Olive, Slim
RoleFather, Teacher, Widower
Engages inBlackmail, Netori


He is a middle-aged teacher at the school which his son Kouichi and Yuuna attend.
He has a rational and calm personality. He normally strives to be a good father and teacher.
He appears young with an air of freshness, and is very popular for not having a strict attitude at school.
He is an excellent teacher and serves as a homeroom teacher and also as the person in charge of the science curriculum.
His wife passed away about 20 years ago, and it's been only him and Kouichi living together ever since.
He treats the Akidzuki household as family and cherishes and considers Yuuna as his real daughter.
He spent his days productively as a father and a teacher,
but Yuuna and Kouichi's relationship sparked the relation of his own perverted true feelings.

Main characters

Akizuki Yuuna秋月 優奈
MeasurementsHeight: 157cm, Bust-Waist-Hips: 90-56-83cm, F cup
HairBlack, Long, Sidehair, Straight
BodyAverage Height, Big Breast Sizes, Pale, Slim, Teen
ClothesApron, Baby-doll, Cardigan, Knee-high Socks, New Type School Swimsuit, Ribbon Tie, School Uniform, Short Shorts, Sports Swimsuit, Tank Top
PersonalityRefined, Serious, Watashi
RoleChildhood Friend, Class President, Girlfriend, High School Student, Not a Virgin, School Swimming Club Member
Engages inCooking, Infidelity
Subject ofBlackmail
Voiced byShippuu Haru


A female student who attends the school that the protagonist is on the teaching staff of.
With good grades in school, she works as the class representative of the class the protagonist is in charge of.
Because of her polite and earnest personality, she is very obedient despite whatever her feelings may be.
Despite being a well-together individual, she is fragile against passion, and weak under pressure.
Her parents divorced when she was very young, and she currently lives together with her mother.
In place of her mother who returns home late from work, she handles the housework and her cooking is top class.
She associates with her neighbors, the protagonist and his son Kouichi, as her own family.
As a result of barely any acquaintance with her own father, she calls the protagonist "Uncle" and adores him like a father.
She grew up with Kouichi as a childhood friend, and they are now boyfriend and girlfriend.
Although she has already experienced sex with Kouichi, she has never experienced doing it without a condom.

Miyata Kouichi宮田 康一
HairBrown, Short
BodyMuscular, Olive, Slim, Teen
ClothesSchool Uniform
RoleBoyfriend, Childhood Friend, High School Student, School Sports Club Member, Son
Engages inSports


The only son of the protagonist, a male student who attends the same school as Yuuna.
He's the frank type who speaks his mind. He dislikes awry things and has a strong sense of justice.
He doesn't say it, but he reveres his father who raised him alone from the bottom of his heart.
With blessed physique and high reflexes, he is good at all sports and strong in a fight.
He was the ace striker of the soccer club but has now devoted himself to studying.
He and Yuuna, who is only a month younger than him, were raised like siblings.
Having been aware of her as a member of the opposite sex for some time, he confessed to and became boyfriend and girlfriend with Yuuna.