快適性とオーディオCustom Volume ControlsMouse Only OptionPlayable without Timed InputSave Anytime
システム要件
最低推奨OSWindows 10—プロセッサーIntel Core 2 Duo E4700—グラフィックIntel HD 4000—メモリー8 GB RAM—ストレージ1 GB available space—
My Best Friend's Sisterについて
What happens when a spark ignites where it absolutely shouldn't? My Best Friend's Sister is a sizzling visual novel that pulls you into a whirlwind of temptation, secret desires, and choices that will echo through your life.
It all starts with a typical night out—you, your best friend, and his rowdy crew, drowning in drinks and sharing raunchy stories that would make anyone blush. But the real story begins after the last call. Crashing at your friend's place for the night, you come face-to-face with the one person who won't let you sleep: his younger sister.
She's sharp, playful, and impossibly alluring. And tonight, her gaze is full of unspoken promises, her words laced with a daring invitation. She's clearly playing a game, and you're her intended target.
The Choice is Yours:
- Give in to Temptation? Engage in her dangerous flirtation and risk a night of passion that could shatter your most important friendship.
- Take the High Road? Stay loyal to your friend and try to forget this charged encounter, always wondering "what if..."
Every decision you make shapes your relationships, unlocking new scenes, dialogue, and endings. Will you resist? Or will you let desire take control?
Key Features:
🔥 A Compelling Story with Spicy Twists
Dive into a narrative where every night holds new secrets, and every choice leads to unexpected consequences. A simple sleepover turns into a high-stakes game of seduction and loyalty.
🎨 Stunning, High-Quality Artwork
Immerse yourself in a beautifully crafted world. Featuring exquisitely illustrated characters and scenes, every location—from the noisy bar to the intimate bedroom—is rendered with stunning detail to pull you into the story.
💘 Smooth, Animated Intimate Scenes
Experience the heat of the moment with fluid and immersive adult animations that bring the passion and intensity of the story to life.
🍻 Guy's Night Out & Raunchy Bar Tales
Become one of the guys as you listen to their provocative and uncensored stories of romantic escapades and misadventures. These tales aren't just for laughs—they might even teach you a thing or two.
✨ Meaningful Choice-Driven Gameplay
This isn't about simple right or wrong answers. Your seemingly small decisions dynamically alter your relationships and directly lead to multiple endings. Replay to discover every possible outcome!
よくある質問
Steamストア(JP)でのMy Best Friend's Sisterの価格は¥ 1,500です。2026年9月22日以降に当サイトが記録した最安値は¥ 1,500です。Steamではこのゲームに12地域で個別の価格が設定されています。地域別の価格は上記のとおりです。
My Best Friend's Sisterは2026年1月9日にNaughty Sisterからリリースされました(9か月前にリリース)。
最低:Windows 10, Intel Core 2 Duo E4700, Intel HD 4000, 8 GB RAM。上のシステム要件カードでは、各プラットフォームの最低スペックと推奨スペックを比較できます。
Steamでは、My Best Friend's Sisterに必要な空き容量は1 GBとされています。
415件のSteamレビューのうち67.7%が好評で、Steamでの評価は「Mixed」です。
はい。My Best Friend's Sisterはインターフェースと字幕が日本語に対応していますが、日本語のフル音声は収録されていません。Steamには合計16言語が掲載されており、そのうち1言語がフル音声に対応しています。
いいえ。Steamでは、My Best Friend's Sisterはシングルプレイヤーゲームとして記載されています。
SteamStatisticsのMy Best Friend's SisterのSteamチャートでは、リアルタイムのプレイヤー数と24時間・7日間・30日間の推移グラフを確認できます。データは少なくとも10分ごとに更新されます。
Steamでは、My Best Friend's SisterはWindows、macOS、Linuxに対応しています。コントローラーに完全対応。
My Best Friend's Sisterの年齢レーティングはDEJUS 18、IGRS BANNEDです。