---
title: "Viper-F50 ~Mirai Tokusou Bureiban~"
description: "The sequel to the \"Future Investigator Bravan\" story told in VIPER-V12, VIPER-F50 continues the tale of Bravan and his partner Anri as they fight against the fo"
image: "https://t.vndb.org/cv/41/92841.jpg"
---

# Viper-F50 ~Mirai Tokusou Bureiban~

![Viper-F50 ~Mirai Tokusou Bureiban~](https://t.vndb.org/cv/41/92841.jpg)

**Alternative Title:** VIPER-F50 ～未来特捜ブレイバン～

**Developer:** Sogna

**Release date:** Apr 23, 1999

**Platform:** Windows

**Language:** Japanese

**Rating:** 6.4/10 (17 votes)

## Description
The sequel to the "Future Investigator Bravan" story told in VIPER-V12, VIPER-F50 continues the tale of Bravan and his partner Anri as they fight against the forces of Donage and its army of mutants. Colonel Gel returns with a plot to defeat Bravan by capturing Anri and fellow investigator Shain. However, Gel's plot for world domination unknowingly hinges on the faith and abilities of her young protégé, Mari.

[From [Sogna Digital Museum](http://www.sognadigitalmuseum.com/products/games/f50.html)]

## Characters
### Anri (アンリ)
Braven's partner, though she serves in a supporting role.

In Viper-V12 ("Future Investigator Bravan" story), the Donages single Anri out as the perfect target to lure Braven into a trap.

In Viper-F50, Anri plays a more active role in the narrative, breaking away from the "damsel in distress" archetype of the previous story.

- **Gender:** Female
- **Hair:** Long, Short, Green
- **Eyes:** Green
- **Body:** Tattoo
- **Clothes:** Necklace, Vest, Wristband, Miniskirt, Tube Top
- **Role:** Coworker

### Colonel Gel (ゲル大佐)
She is a mutant brought in, by the Great Leader, from the New York branch to command the Donage army in Tokyo.

In Viper-V12 ("Future Investigator Bravan" story), her first act is to offer the Donages a better alternative for defeating Braven: instead of a direct assault, they will target and capture his partner Anri - the team's weakest link - to lure the hero into a trap and ensure his downfall.

In Viper-F50, Colonel Gel holds greater narrative importance as a central figure in the unfolding events.

- **Gender:** Female
- **Hair:** Blond, Long
- **Role:** Villain
- **Eyes:** Blue
- **Clothes:** Cape, Forehead Necklace, Tube Top Bra, Latex Thigh-high Stockings, Latex Long Gloves

### Mari (マ リ)
Orphaned by illness, she is abandoned by the community due to her parents' controversial reputation.

Her fate changes when Colonel Gel appears, bringing Mari under the villainess's guardianship.

- **Gender:** Female
- **Hair:** Violet, Short
- **Clothes:** School Uniform, Mini-dress, Necklace, Futuristic Suit
- **Engages in:** Fighting, Disguise
- **Eyes:** Violet
- **Subject of:** Unavoidable Death

### Shain (シャイン)
She is a special investigator who works at the same agency as the protagonist, Bravan.

Shain was officially ordered to assist him due to the rapidly increasing number of Donages appearing throughout Tokyo.

- **Gender:** Female
- **Hair:** Brown, Short
- **Eyes:** Brown
- **Role:** Hero
- **Items:** Motorcycle
- **Clothes:** Futuristic Suit

## Shops
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ001727.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=19391)

## Releases
### Japanese
- **1999-04-23**: Viper-F50 ~Mirai Tokusou Bureiban~ - [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=557)
- **2002-12-20**: Viper Classic Collection Box Vol. 2
- **2002-12-20**: Viper Classic Collection: Viper-F50 - [Getchu](http://www.getchu.com/soft.phtml?id=19391)
- **2006-04-22**: Viper-F50 ~Mirai Tokusou Bureiban~ Download Edition - [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ001727.html), [Gyutto](https://gyutto.com/i/item2438), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0005905/), [DL.Getchu](http://dl.getchu.com/i/item1000543), [DMM](https://dlsoft.dmm.co.jp/detail/sogna_0013/)

## Tags
Sexual Content, ADV, Rape, Male Protagonist, Future, Unavoidable Heroine Rape, Private Detective Protagonist, Sex With Monsters, Netorare Type C, Monster Rape, Linear Plot

## More Games from Sogna
- [Animahjong V3](https://pinovel.net/v10213)
- [Viper-V6](https://pinovel.net/v8326)
- [Viper-V8](https://pinovel.net/v8327)
- [Viper-V10](https://pinovel.net/v8325)
- [Animahjong  X](https://pinovel.net/v10215)
- [Viper-GTS](https://pinovel.net/v4567)
- [Viper-V12](https://pinovel.net/v7493)
- [Viper-V16](https://pinovel.net/v3415)
- [Viper-BTR ~Mahou no Tobakushi Totokaru☆Chomi~](https://pinovel.net/v10122)
- [Viper-CTR ~Asuka~](https://pinovel.net/v978)
- [Viper-F40](https://pinovel.net/v977)
- [Guynarock R](https://pinovel.net/v14947)
- [Viper-M1](https://pinovel.net/v3420)
- [Viper-F50 ~Mirai Tokusou Bureiban~](https://pinovel.net/v7490)
- [Viper-GTB ~Rise After~](https://pinovel.net/v10121)
- [Viper-GT1 ~Akira-kun to Issho~](https://pinovel.net/v7491)
- [Typing Viper](https://pinovel.net/v7407)
- [Viper-M5](https://pinovel.net/v7492)
- [VIPER-RSR](https://pinovel.net/v970)
- [Viper-M3-3.2](https://pinovel.net/v10120)

---
*View the full details at [pinovel.net/v7490](https://pinovel.net/v7490).*

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