[The stage is an elevator. But you are at your limit—]

You’re in an elevator with the girl of your dreams. A quiet, intimate space for just the two of you. The perfect romantic setup...
However, what hits you isn’t a romantic spark, but a MASSIVE WAVE OF "GAS."

To make matters worse, she starts sharing "Fascinating Animal Trivia"... and she expects you to listen! Master the "SBD Strategy"—the ultimate survival tactic provided by AI—to escape this crisis!

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■ THE ULTIMATE MULTI-TASKING: RHYTHM & TRIVIA
While you are desperately controlling your sphincter with the SBD Strategy, you must also pay attention to her.
- Listen Carefully: She will share mysterious facts about the animal kingdom.
- Trivia Quizzes: She might test your knowledge. Can you maintain your poker face and answer correctly while battling your own biology?

■ "SBD" — AN ART OF PHYSICS AND PHYSIOLOGY
SBD stands for "Silent But Deadly." In other words, the ultimate silent fart.
To eliminate sound, you must relax your sphincter, lower the gas flow velocity, and prevent vibration.
Through this delicate rhythm game controlled by your fingertips, you must overcome this life-or-death situation.

■ STRATEGIC "GAS MANAGEMENT" SYSTEM
- 4 Release Levels: From "SBD" (0% detection) to "Lv.3" (100% sound detection), tap the buttons according to the situation.
- Sound Detection Rate: Hold it in with perfect timing. But be warned: the longer you hold, the faster and more intense the waves become.
- Smell Management: Every release increases the odor level. Once it exceeds 50%, a "detection check" occurs every second—the beginning of a deadly gamble!

■ NO "INSTANT GAME OVER"
Even if you fail a quiz, a sound leaks, or the smell is detected, it’s not over yet.
You will always pass through the "JUDGEMENT PHASE."
Your survival rate during Judgement is exactly 50% (a perfect coin toss).

Will you give it your best shot with rhythm, knowledge, and precision, or will you trust your luck in the final Judgement?

"The probabilities are set. The rest depends on your rhythm, your memory, and your luck. May the odds be ever in your favor."