Futaimo Days ~Onii-chan, Naisho de Shiyo♪~
ふたいもデイズ ～おにいちゃん、ナイショでシよ♪～
- Original Language
- ja
- Released
- 2014.02.21
- Play Time
- 5h (1 votes) (EGS: 2h)
- Developer
- Appetite
- Publisher
- enMonolith Translations
+2 countries
- External Links
- vndb
"Brother-in-law." "Brother-in-law♪"
No matter how you look at it, these two are the mirror image of each other. They are my little sisters, or rather, my little sisters-in-law.
My father, who had lost his wife early and struggled to raise me, remarried a beautiful widow in a similar situation. The widow... My mother-in-law had two cute daughters. We are going to be brother-in-law and sister-in-law a little apart in age.
When we decided to live together, “I wanted a big brother♪” I was happy to receive such a welcome, but maybe they were being a little too clingy. We were practically lovers now.
"He's mine!!" "He's mine!!"
Even real siblings—no, real siblings—wouldn’t be this attached to each other, but I can’t say to stop it. They are a little worrysome, but my little sisters are cute. They may be my sisters-in-law, but I don't feel bad to have cute girls like and look up to me.
One night, those days continued. As I was taking a bath, the door suddenly opened...and my sisters-in-law came in! Just having my sister-in-law come in while I'm bathing would be incredibly troubling, so why are the two of them completely naked...!? And no matter how you look at it, it looks like a contraceptive, a condom. I was at point-blank range, lost in thought as to what to do.
Before I knew it, my sisters-in-law came closer...
No matter how you look at it, these two are the mirror image of each other. They are my little sisters, or rather, my little sisters-in-law.
My father, who had lost his wife early and struggled to raise me, remarried a beautiful widow in a similar situation. The widow... My mother-in-law had two cute daughters. We are going to be brother-in-law and sister-in-law a little apart in age.
When we decided to live together, “I wanted a big brother♪” I was happy to receive such a welcome, but maybe they were being a little too clingy. We were practically lovers now.
"He's mine!!" "He's mine!!"
Even real siblings—no, real siblings—wouldn’t be this attached to each other, but I can’t say to stop it. They are a little worrysome, but my little sisters are cute. They may be my sisters-in-law, but I don't feel bad to have cute girls like and look up to me.
One night, those days continued. As I was taking a bath, the door suddenly opened...and my sisters-in-law came in! Just having my sister-in-law come in while I'm bathing would be incredibly troubling, so why are the two of them completely naked...!? And no matter how you look at it, it looks like a contraceptive, a condom. I was at point-blank range, lost in thought as to what to do.
Before I knew it, my sisters-in-law came closer...
| Date | Lang | Title | Type | Age | Flags | Stores | EGS |
|---|---|---|---|---|---|---|---|
| 2014.02.21 | ja | Futaimo Days ~Onii-chan, Naisho de Shiyo♪~ Package Edition | complete cd |
18+ | Res | 55 | |
| 2014.02.06 | ja | Futaimo Days ~Onii-chan, Naisho de Shiyo♪~ Trial Edition | trial in |
18+ | ResFree |
Open 1 |
|
| 2014.02.21 | ja | Futaimo Days ~Onii-chan, Naisho de Shiyo♪~ Download Edition | complete in |
18+ | Res | 55 | |
| 2014.06.27 | ja | Futaimo Days ~Onii-chan, Naisho de Shiyo♪~ DVDPG | complete dvd |
18+ |
Open 1 |
||
| 2017.07.28 | ja | Appetite Select Pack - Akino Shin Vol. 1 - Package Edition | complete dvd |
18+ | Res |
Open 1 |
|
| 2017.07.28 | ja | Appetite Select Pack - Akino Shin Vol. 1 - Download Edition | complete in |
18+ | Res |
Open 1 |
|
| 2024.04.07 | en | Twin Sister Days ~ Let's do it, Big Brother. (Unofficial) | complete | 18+ | Free |
Open 1 |
|
| 2025.06.03 | id | Futaimo Days ~Onii-chan, mari rahasiakan ini♪~ (Unofficial) note | complete in |
18+ | VoiceResFreePatch |
Open 1 |
Original edition
scenario
| Sakamoto Seinichi |
music
| AZ-MIX | BGM |
| Sound mate project | OP "Twinkle★star" |
art
| akinoshin |
songs
| Kayana＊ | OP "Twinkle★star" |