---
title: "Kaiki! Drill Otoko no Kyoufu"
description: "Three schoolgirls are wandering in the forest, looking for the pension, where they planned to spend the night. However they are stumbling upon a seemingly empty"
image: "https://t.vndb.org/cv/81/137981.jpg"
---

# Kaiki! Drill Otoko no Kyoufu

![Kaiki! Drill Otoko no Kyoufu](https://t.vndb.org/cv/81/137981.jpg)

**Alternative Title:** 怪奇！ドリル男の恐怖

**Aliases:** Mystery! Fear of Drillman

**Developer:** Tetratech

**Release date:** Sep 24, 1999

**Platform:** Windows, DVD

**Language:** Japanese, English

**Rating:** 5.6/10 (116 votes)

## Description
Three schoolgirls are wandering in the forest, looking for the pension, where they planned to spend the night. However they are stumbling upon a seemingly empty mansion in the middle of the forest instead. Since the sun is about to go down and it's raining anyway, they decide to spend the night there.

However, the Drill Man appears soon after and tries to hunt them down. Will they be able to find out the secret of the mansion? Will they make it out alive? Or will they be captured and kept as playthings for the mysterious inhabitants of the mansion?

## Characters
### Takatsuka Ayaka (高塚 彩花)
- **Gender:** Female
- **Birthday:** 27 October
- **Hair:** Brown, Twin Tails, Straight
- **Eyes:** Brown
- **Body:** Pale, Kid, Small Breast Sizes
- **Clothes:** School Uniform, Hair Ribbon, Headband, Kemonomimi Headband, Shirt, Sport Bloomers, Religious Clothing and Accessories, Tail, Overall, Naked, Ribbon Tie, Traditional Bloomers, Cupless Corset
- **Role:** Full Sister, Younger Sister
- **Subject of:** Torture, Confinement, Kidnapping
- **Engages in:** Investigation
- **Personality:** Naive, Energetic, Third Person
- **Voiced by:** Iwaizumi Mai

### Takatsuka Hazuki (高塚 葉月)
- **Gender:** Female
- **Birthday:** 10 July
- **Hair:** Red, Ponytail, Waist Length+, Straight, Parted in Middle, Pubic Hair
- **Body:** Teen, Pale
- **Clothes:** School Uniform, Apron, Hair Ribbon, Headband, Sport Bloomers, Half-naked, Maid's Dress, Nurse Uniform, Garter Belt Stockings
- **Eyes:** Red
- **Role:** Full Sister
- **Subject of:** Torture, Confinement, Slavery, Kidnapping
- **Engages in:** Investigation
- **Personality:** Tomboy
- **Voiced by:** Aoyama Yukari

### Takatsuka Yukino (高塚 雪乃)
- **Gender:** Female
- **Birthday:** 14 April
- **Hair:** Blue, Straight, Spiky Bangs
- **Body:** Pale, Young-adult
- **Engages in:** Cooking, Investigation
- **Eyes:** Blue
- **Clothes:** Apron, Hood, Headband, Cross Necklace, Maid's Dress, Habit, Garter Belt Stockings, Leotard, Miko's Dress, Bunny Dress
- **Role:** Full Sister
- **Subject of:** Torture, Confinement, Slavery, Kidnapping
- **Voiced by:** Usami Momoka

### RINGARINGA (リンガリンガ)
- **Gender:** Male
- **Alias:** Drill Man
- **Role:** Villain, Servant, Robot
- **Eyes:** Hidden
- **Body:** Muscular, Dark
- **Clothes:** Half-naked, Helmet
- **Items:** Drill [Weapon]

### Yume (結女)
- **Gender:** Female
- **Hair:** Blue, Long, Straight, Parted in Middle, Pubic Hair
- **Body:** Pale, Young-adult, Halo
- **Role:** Villain, Betrothed, Granddaughter, Ghost
- **Eyes:** Blue
- **Clothes:** Dress, Detached Sleeves, Bondage Harness
- **Subject of:** Death, Confinement
- **Engages in:** Murder
- **Voiced by:** Dynamite Ami

### Dr Asizawa (ドクター 芦沢)
- **Gender:** Male
- **Hair:** White
- **Eyes:** Brown
- **Clothes:** Trousers, Glasses, Shirt, Lab Coat
- **Role:** Villain, Betrothed, Grandfather, Scientist
- **Body:** Old, Olive
- **Subject of:** Unavoidable Other Route Death

### Maid (メイド)
- **Gender:** Female
- **Hair:** Blond, Bob Cut, Shoulder-length, Straight, Spiky Bangs, Parted to Side
- **Body:** Slim, Pale, Young-adult, Futanari
- **Role:** Villain, Maid, Ghost
- **Eyes:** Blue, Tsurime
- **Clothes:** Apron, Maid's Dress, Maid's Headdress
- **Voiced by:** Shirai Ayano

### Master (館の主人)
- **Gender:** Male
- **Hair:** Black, Short, Sideburns, No Bangs, Slicked Back
- **Clothes:** Trousers, Shirt, Vest, Belt, Ring, Watch
- **Role:** Master, Villain, Ghost
- **Eyes:** Black
- **Body:** Adult, Overweight, Olive, Ugly
- **Personality:** Pervert
- **Engages in:** Torture, Shapeshifting

### Willem (ウィレム 司祭)
- **Gender:** Male
- **Hair:** Brown, Long, Straight, Moustache
- **Body:** Pale, Adult
- **Role:** Villain, Demon, Ghost
- **Eyes:** Black, Red
- **Clothes:** Cloak, Habit
- **Engages in:** Torture
- **Items:** Book
- **Personality:** Religious Extremist

## Shops
- [Official Website](http://web.archive.org/web/20010410181211/http://tetratech.co.jp/hp/drill/index.html)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ005430.html)

## Releases
### Japanese
- **1999-09-24**: Kaiki! Drill Otoko no Kyoufu - [Official website](http://web.archive.org/web/20010410181211/http://tetratech.co.jp/hp/drill/index.html), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=156)
- **2002-10-31**: Kaiki! Drill Otoko no Kyoufu - DVDPG - [Official website](https://web.archive.org/web/20050204231535/https://dvdpg.jp/021031/dcpg010.html)
- **2002-10-31**: Kaiki! Drill Otoko no Kyoufu - DVDPG Rental Edition
- **2010-12-23**: Kaiki! Drill Otoko no Kyoufu - Download Edition - [Official website](http://web.archive.org/web/20010410181211/http://tetratech.co.jp/hp/drill/index.html), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ005430.html), [Gyutto](https://gyutto.com/i/item1613), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0049614/), [DL.Getchu](http://dl.getchu.com/i/item1002947), [DMM](https://dlsoft.dmm.co.jp/detail/ggs_0506/)

### English
- **2010-12-05**: Kaiki! Drill Otoko no Kyoufu - [Official website](http://www.hongfire.com/forum/showthread.php/162045-Kaiki%21-Drill-no-Otoko-no-Kyoufu-Translation-Project)

## Tags
Horror, Terrorized by Monsters, Mystery, ADV, Modern Day Earth, Blood-related Sister/Sister Incest, Female Protagonist, Protagonist with Voice Acting, Multiple Protagonists, Linear Plot, Lolicon, Tentacle Rape, Spontaneous Sex Scenes, Christian Church, Fast Mini-games, Confinement, Map Movement, High Sexual Content, Western-style Manor, Ghost, Interactive Adventure Game, Group Sex of One Female and Several Males, Undead, Student Protagonist, Protagonist Selection, Unavoidable Heroine Rape, Unique Routes, Lesbian Rape, Futanari Support Character, Priest Support Character, Loli Protagonist, Haunted House, Bad Ending(s), Ponytail Heroine, Dildos, Protagonist with a Face, Anal Penetration, Boobjob, Selfcest, Twin Tail Heroine, Sixty-nine, Blowjob, Handjob, Avoidable Rape, Slime Monster Rape, Maid Support Character, Mad Scientist Support Character, Masturbation, Tribadism, BDSM, Object Insertion, Group Sex of Several Females, Doggy Style, Clothing Damage, Insemination by Non-Humanoids, Wax Play, Rape Involving Drugs, Protagonist with a Sprite, Pubic Hair Shaving, Futanari on Female, Body Food, Single Boobjob

## More Games from Tetratech
- [Kyouiku Jisshuu ~Joshikousei Maniacs~](https://pinovel.net/v7597)
- [Kannou Kyoushuu](https://pinovel.net/v9080)
- [Private Garden](https://pinovel.net/v10263)
- [Private Garden 2](https://pinovel.net/v10264)
- [Labrum ~Yasashii Kizu~](https://pinovel.net/v10030)
- [Kaiki! Drill Otoko no Kyoufu](https://pinovel.net/v4802)
- [Sakura no Niwa](https://pinovel.net/v11481)
- [Kyouiku Jisshuu 2 ~Joshikousei Maniacs~](https://pinovel.net/v11482)
- [Private Garden 3](https://pinovel.net/v10265)

---
*View the full details at [pinovel.net/v4802](https://pinovel.net/v4802).*

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