USD 0Version 1.0.2Wed Jun 11 2025
Bug Fixes
軽微な修正をおこないました
Welcome, human.
In this world, unseen beings lurk in the shadows.
Among them are the monster girls—beautiful yet terrifying—who will steal your heart and trap you in choices with no escape.
Choose wisely, and you’ll be wrapped in sweet, mysterious love.
But choose wrong… and a cruel fate may await.
Whether you find love or lose your life… depends on your choices.
▼ For Humans Like You
・Want a thrilling romance with monster girls
・Can’t resist the word “pretty girl,” even if it’s terrifying
・Brave enough to enjoy even the consequences of a wrong choice
So, which will you choose?
The sweet temptation of monster girls... or a terrifying end with no return?
Your fate lies in your hands.
Now then—let the game begin.
Download it now!
EU / California users can opt-out under GDPR / CCPA.
Please respond from the pop-up displayed when starting in the app or within the settings in the app.
Requires iOS 13.0 or later. Compatible with iPhone, iPad, and iPod touch.






Promise With A Monster is a thoughtfully designed mobile game that blends accessible mechanics with steadily increasing challenge. Players place and manipulate objects to influence in-game elements, solve levels, and progress through curated stages. The experience favors experimentation and polish, with simple controls and satisfying feedback.
No additional information available.