---
title: "Koibito = Love x Sex 4"
description: "Sweet love and sex between lovers! The secret love affair between Serika a teacher and her student.  [Edited from DLsite English]"
image: "https://t.vndb.org/cv/96/12196.jpg"
---

# Koibito = Love x Sex 4

![Koibito = Love x Sex 4](https://t.vndb.org/cv/96/12196.jpg)

**Alternative Title:** 恋人=らぶ×せっくす4

**Aliases:** Girlfriend = LovexSex 4

**Developer:** Amagami Dou

**Release date:** Nov 25, 2011

**Platform:** Windows

**Language:** Japanese

**Rating:** 6.7/10 (8 votes)

## Description
Sweet love and sex between lovers!
The secret love affair between Serika a teacher and her student.

[Edited from [DLsite English](http://www.dlsite.com/ecchi-eng/work/=/product_id/RE087029.html)]

## Characters
### Fukada Masaki (深田 政紀)
- **Gender:** Male
- **Hair:** Brown, Short, Spiky Bangs
- **Eyes:** Brown
- **Body:** Teen, Pale
- **Clothes:** School Uniform, Hoodie
- **Role:** Son, High School Student
- **Engages in:** Teasing, Flirting
- **Subject of:** Teasing, Flirting

### Harumi Serika (遥海 芹香)
- **Gender:** Female
- **Hair:** Brown, Short, Straight, Intake, Parted to Side
- **Body:** Slim, Pale, Young-adult, Adult, Big Breasts, Tall
- **Eyes:** Violet
- **Clothes:** Trench Coat, Miniskirt, Pantyhose, Military Uniform
- **Personality:** Tsundere, Shy, Strict, Kind, Serious
- **Role:** Teacher
- **Voiced by:** Izumi Ayaka

### Aizawa Tatsuya (相澤 竜也)
- **Gender:** Male
- **Hair:** Blond, Curtained, Short, Spiky Bangs, Parted to Side
- **Body:** Teen, Slim, Pale
- **Eyes:** Blue
- **Role:** Friend
- **Items:** Flower / Plant
- **Personality:** Sister Complex
- **Clothes:** Pocket Square, Gakuran
- **Voiced by:** Kobayashi Izou

### Honjou Satsuki (本城 左月)
- **Gender:** Male
- **Hair:** Blue, Antenna, Short, Spiky Bangs, Unusual Eyebrows
- **Eyes:** Brown
- **Body:** Teen
- **Personality:** Pervert, Cheerful
- **Role:** Friend
- **Clothes:** Gakuran
- **Voiced by:** Satou Masatoshi

### Masase Miyu (牧瀬 美優)
- **Gender:** Female
- **Hair:** Blue, Short, Straight, Spiky Bangs
- **Body:** Teen, Slim, Pale, Big Breasts
- **Clothes:** School Uniform, Miniskirt, Bikini, Ribbon Tie, Body Ribbon, Puffy Sleeves, Deep V-Neck Swimsuit, Sleeveless Sweater
- **Eyes:** Violet, Tsurime
- **Personality:** Boku, Pervert, Assertive, Romantic
- **Role:** Girlfriend, Classmate, High School Student
- **Engages in:** Teasing, Flirting
- **Voiced by:** Sakaki Runa

### Mishima Hisano (三嶋 久乃)
- **Gender:** Female
- **Hair:** Blue, Violet, Ahoge, Ponytail, Curtained, Straight, Parted to Side, Ankle Length, Sidehair
- **Body:** Teen, Slim, Pale, Big Breasts
- **Clothes:** School Uniform, Vest, Miniskirt, Pantyhose, Bikini, Naked Apron, Ribbon Tie, Clothing with Ribbons, Ribbon Hair Tie, Puffy Sleeves
- **Engages in:** Cooking, Teasing, Flirting, Computering
- **Eyes:** Blue, Tareme
- **Personality:** Friendly, Refined, Kind, Mature, Marriage Complex
- **Role:** Betrothed, Girlfriend, Senpai, High School Student, Yamato Nadeshiko
- **Voiced by:** Gogyou Nazuna

### Nanase Yuma (七瀬 由真)
- **Gender:** Female
- **Hair:** Blond, Waist Length+, Wavy, Intake, Spiky Bangs, Sidehair
- **Body:** Slim, Pale, Young-adult, Big Breasts
- **Eyes:** Violet, Tareme
- **Clothes:** Miniskirt, Lab Coat
- **Personality:** Spoiled, Timid, Distrustful, Kind
- **Role:** Medical Doctor, Not a Virgin, School Nurse
- **Voiced by:** Oohana Don

### Shigihara Rikka (鴫原 六花)
- **Gender:** Female
- **Hair:** Pink, Twin Tails, Waist Length+, Straight, Spiky Bangs, Half Updo
- **Body:** Teen, Slim, Pale, Big Breasts
- **Clothes:** School Uniform, Apron, Hair Ribbon, Vest, Miniskirt, Thigh-high Stockings, Bikini, Ribbon Tie, Clothing with Ribbons, Ribbon Hair Tie, Puffy Sleeves
- **Engages in:** Cooking, Flirting
- **Personality:** Modern Tsundere, Arrogant, Short-tempered, Stubborn, Naive
- **Role:** Girlfriend, Friend, Classmate, High School Student
- **Items:** Mobile Phone
- **Subject of:** Teasing, Flirting
- **Eyes:** Cyan
- **Voiced by:** Anzu Hana

## Shops
- [Official Website](http://amagami.sakura.ne.jp/l_s4.html)
- [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ087029.html)

## Releases
### Japanese
- **2011-11-25**: Koibito = Love x Sex 4 - Package Edition - [Official website](http://amagami.sakura.ne.jp/l_s4.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=16272)
- **2011-11-25**: Koibito = Love x Sex 4 - Download Edition - [Official website](http://amagami.sakura.ne.jp/l_s4.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=16272), [DLsite](https://www.dlsite.com/maniax/work/=/product_id/RJ087029.html), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0060111/), [DMM](https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_043406/)

## Tags
Sexual Content, ADV, School, Male Protagonist, Teacher Heroine, Nukige, School Nurse Support Character, Group Sex of One Male and Several Females, Student Heroine, Adult Heroine, Student Protagonist, Tsundere Heroine, Twin Blowjob, Cunnilingus, Female Ejaculation, School Nurse Heroine, Few Choices, Student-Teacher Romance, Bathroom Sex, Twin Boobjob, Heroine with Big Breasts

## More Games from Amagami Dou
- [Koibito = Love x Sex](https://pinovel.net/v9699)
- [Koibito = Love x Sex 2](https://pinovel.net/v9698)
- [Koibito = Love x Sex 3](https://pinovel.net/v9696)
- [Koibito = Love x Sex 4](https://pinovel.net/v9659)
- [Koibito = Love x Sex 5](https://pinovel.net/v9697)
- [Mojo Dakedo, Gyaru ni Hensou Shitara Yuujin no Otto ni Namahame Sarechaimashita](https://pinovel.net/v18792)
- [Yariman Kuro Gyaru o Chi○po dake de Otoshita Kedo Shitsumon Aru?](https://pinovel.net/v19110)

---
*View the full details at [pinovel.net/v9659](https://pinovel.net/v9659).*

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