---
title: "Osu Mesu ☆ Time Slip!"
description: "Because of a birthday present from his best friend, Masumi finds himself as the opposite gender in a different time period the day after his birthday. In order "
image: "https://t.vndb.org/cv/67/7667.jpg"
---

# Osu Mesu ☆ Time Slip!

![Osu Mesu ☆ Time Slip!](https://t.vndb.org/cv/67/7667.jpg)

**Alternative Title:** おすめす☆たいむすりっぷ！

**Aliases:** おすめすたいむすりっぷ！

**Developer:** Beenyan

**Release date:** Dec 9, 2005

**Platform:** Windows, DVD

**Language:** English, Japanese

**Rating:** 5.8/10 (14 votes)

## Description
Because of a birthday present from his best friend, Masumi finds himself as the opposite gender in a different time period the day after his birthday. In order to return to his former time and gender, Masumi needs someone that is fully convinced that he is male as his girlfriend. 

[From taruby.gamerkun]

## Characters
### Masumi (眞澄)
- **Gender:** Male
- **Measurements:** Height: 172cm
- **Subject of:** Sex Change (Male to Female)

### Masumi (真澄)
- **Gender:** Female
- **Measurements:** Height: 144cm, Bust-Waist-Hips: 70-58-72cm
- **Hair:** Red, Twin Tails, Waist Length+, Wavy, Spiky Bangs
- **Body:** Teen, Slim, Pale
- **Eyes:** Blue, Tareme
- **Clothes:** Dress, Headband, Sport Bloomers, Thigh-high Stockings, Ribbon Tie
- **Subject of:** Sex Change (Male to Female)
- **Voiced by:** Enokizu Mao

### Fujimori Shizuki (藤森 静季)
- **Gender:** Female
- **Measurements:** Height: 167cm, Bust-Waist-Hips: 82-60-79cm
- **Hair:** Blue, Waist Length+, Straight, Spiky Bangs, Twin Braids, Tiny Braid
- **Body:** Teen, Slim, Pale
- **Clothes:** Skirt, Jeans, Body Ribbon, Hair Tie, Choker, Off-The-Shoulder Shirt
- **Personality:** Carefree, Relaxed
- **Role:** Domestic Partner, Living Alone
- **Eyes:** Tareme, Teal
- **Voiced by:** Kono Kanami

### Hiiragi Maho (柊 真穂)
- **Gender:** Female
- **Measurements:** Height: 160cm, Bust-Waist-Hips: 80-58-79cm
- **Hair:** Blond, Shoulder-length, Spiky Bangs, Parted in Middle
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Headband, Shirt, Vest, Miniskirt, Knee-high Socks, Tank Top, Ribbon Tie, Decorative Belt
- **Role:** Childhood Friend, High School Student
- **Eyes:** Pink, Tareme
- **Voiced by:** Fumizuki Kana

### Kyoumi (杏美)
- **Gender:** Female
- **Measurements:** Height: 158cm, Bust-Waist-Hips: 78-59-81cm
- **Hair:** Short, Green, Spiky Bangs
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Shirt, Vest, Miniskirt, Pantyhose, Ribbon Tie, Ribbon Hair Accessory, Old Type School Swimsuit
- **Eyes:** Green, Tareme
- **Personality:** Deredere, Airhead
- **Role:** High School Student
- **Voiced by:** Raiya Rami

### Maisumi Tomoha (舞澄 智羽)
- **Gender:** Female
- **Measurements:** Height: 156cm, Bust-Waist-Hips: 77-56-78cm
- **Hair:** Brown, Twin Tails, Waist Length+, Spiky Bangs, Parted to Side, Sidehair
- **Body:** Teen, Slim, Pale
- **Clothes:** School Uniform, Vest, Miniskirt, Thigh-high Stockings, Ribbon Tie, Hair Tie
- **Eyes:** Blue, Tareme
- **Personality:** Reserved
- **Role:** Classmate, High School Student
- **Subject of:** Catheter
- **Voiced by:** Kono Kanami

### Toumura Hino (冬村 氷乃)
- **Gender:** Female
- **Measurements:** Height: 140cm, Bust-Waist-Hips: 64-52-68cm
- **Hair:** Violet, Ponytail, Waist Length+, Spiky Bangs, Parted to Side
- **Body:** Slim, Pale, Kid
- **Eyes:** Violet, Tareme
- **Clothes:** Mini-dress, Miniskirt, Thigh-high Stockings, Ribbon Tie, Hair Tie, Ribbon Hair Tie
- **Role:** Neighbor
- **Personality:** Kind
- **Voiced by:** Serizono Miya

### Coffee Shop Master (喫茶店のマスター)
- **Gender:** Male
- **Measurements:** Height: 180cm
- **Hair:** Short, Moustache, Sideburns, Stubble, No Bangs, Crew Cut
- **Body:** Pale, Adult
- **Clothes:** Apron
- **Role:** Shopkeeper

### Hiro (博路)
- **Gender:** Male
- **Measurements:** Height: 175cm
- **Hair:** Ahoge, Short, Grey, Spiky, Parted to Side
- **Body:** Teen, Pale
- **Eyes:** Blue
- **Clothes:** Glasses, Shirt
- **Role:** Boyfriend, Friend
- **Items:** Book

## Shops
- [Official Website](https://web.archive.org/web/20110528005919fw_/http://r18game.mine.nu/beenyan/osumesu/m.htm)
- [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ002689.html)
- [Getchu](http://www.getchu.com/soft.phtml?id=804179)

## Releases
### Japanese
- **2005-12-03**: Osu Mesu ☆ Time Slip! - Trial Edition - [Official website](https://web.archive.org/web/20110528020410fw_/http://r18game.mine.nu/beenyan/osumesu/d.htm)
- **2005-12-09**: Osu Mesu ☆ Time Slip! - [Official website](https://web.archive.org/web/20110528005919fw_/http://r18game.mine.nu/beenyan/osumesu/m.htm), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=7018), [Getchu](http://www.getchu.com/soft.phtml?id=214281)
- **2005-12-11**: Osu Mesu ☆ Time Slip! v1.01 Update Patch - [Official website](https://web.archive.org/web/20110528020410fw_/http://r18game.mine.nu/beenyan/osumesu/d.htm)
- **2006-09-22**: Osu Mesu ☆ Time Slip! -  DVD-PG - [Official website](http://web.archive.org/web/20071114190358/http://www.aicherry.com:80/aicherry/AICDV-0102/AICDV-0102.html), [DMM](https://www.dmm.co.jp/mono/anime/-/detail/=/cid=1481aicdv0102/)
- **2008-03-10**: Osu Mesu ☆ Time Slip! - Download Edition - [Official website](https://web.archive.org/web/20110528005919fw_/http://r18game.mine.nu/beenyan/osumesu/m.htm), [ErogameScape](https://erogamescape.dyndns.org/~ap2/ero/toukei_kaiseki/game.php?game=7018), [DLsite](https://www.dlsite.com/pro/work/=/product_id/VJ002689.html), [Digiket](https://www.digiket.com/work/show/_data/ID=ITM0018587/), [DL.Getchu](http://dl.getchu.com/i/item1001228)
- **2014-04-25**: Osu Mesu ☆ Love Kiss Gou Mori Twin Pack - [Getchu](http://www.getchu.com/soft.phtml?id=804179)

### English
- **2013-06-13**: Osu Mesu Time Slip! - [Official website](https://web.archive.org/web/20161112062216/taruby.gamerkun.com/osumesu.html)

## Tags
ADV, Lesbian Sex, Female Protagonist, Loli Heroine, Lolicon, Time Travel, Sex Change, Student Heroine, Protagonist's Childhood Friend as a Hero, Genderbent Sex, Background Moans, Lesbian Lolicon

## More Games from Beenyan
- [Saiinjutsu](https://pinovel.net/v4183)
- [Katei Kyoushi ~Ryoujoku Lesson~](https://pinovel.net/v6124)
- [Oyako Donburi](https://pinovel.net/v1254)
- [Uzuki ~In'yoku ni Michiru Tsuki~](https://pinovel.net/v6125)
- [Soko Dame! Nee-san](https://pinovel.net/v6126)
- [Ryoujoku Santa](https://pinovel.net/v6127)
- [Oyako Donburi 2 ~Akira no Baai~](https://pinovel.net/v5753)
- [Saiinjutsu 2](https://pinovel.net/v4184)
- [○hi Otona no Omochaya-san](https://pinovel.net/v6123)
- [Oyako Donburi 3 ~Ore ga Aitsu de Aitsu ga Ore de~](https://pinovel.net/v5752)
- [Ingetsu no Uzuki](https://pinovel.net/v39802)
- [Tonari no Maou Tsukai](https://pinovel.net/v1263)
- [Ren'ai Multiple!](https://pinovel.net/v4020)
- [Osu Mesu ☆ Time Slip!](https://pinovel.net/v6128)
- [Chikan Kizoku](https://pinovel.net/v280)

---
*View the full details at [pinovel.net/v6128](https://pinovel.net/v6128).*

```json
{"@context":"https://schema.org","@type":"VideoGame","@id":"https://pinovel.net/v6128#game","name":"Osu Mesu ☆ Time Slip!","description":"Because of a birthday present from his best friend, Masumi finds himself as the opposite gender in a different time period the day after his birthday. In order ","url":"https://pinovel.net/v6128","image":"https://t.vndb.org/cv/67/7667.jpg","author":{"@type":"Organization","name":"Beenyan"},"aggregateRating":{"@type":"AggregateRating","ratingValue":"5.8","bestRating":10,"worstRating":1,"ratingCount":14}}
```