Stealing My Brother's Wife - The Lewd Secret of My Sister-in-Law, Melted by My Blackmail

This work tells the story of the protagonist’s wife and her younger sister, who get a job at a gym and gradually fall into depravity.

During the summer vacation when his parents are away, he begins living with his step-sister.

Due to parental circumstances, a brother and sister end up living together for 30 days.
The sister has hit adolescence, and although it's been a while since they last lived together, she seems somewhat aloof.
The two talk, interact... and sometimes even play naughty pranks.
Alone in a room, they gradually grow closer...
A lovey-dovey little sister cohabitation simulation!

Realistic Sister-Brother Sex Sweet, perverted, brother-love... Nothing like that at all.
A "normal older sister" finds herself trapped with her younger brother...
"A room they can't get out of unless they have sex"!?
 
◆◆Features◆◆
・Even though they're just an ordinary brother and sister, they end up having sex!
・Carefully crafted H-scenes with plenty of text, variations, and sound!
・A kind and reliable older woman will pamper you to your heart's content!
 
Character Introduction
"Misaki Kisaragi"
She's a kind and caring older sister. But she can be incredibly scary when angry.
Her consideration for her brother is purely sibling/family-like, not brother-love, but a brother-like feeling.
Of course, she's never even considered having sex with her brother.
 
Game Content
This is a combat-free RPG made with RPG Maker MZ.
Explore the "room you can't get out of unless you have sex" and try to escape together with your older sister.
The story is set in a creepy room and has a heavy theme of incest, but it's not at all dark!
The brother and sister work together to escape this confined space.
There are lots of variations! Laughing over silly things, embarrassed by the sex they have together, and getting angry at their brother for going too far...The sister's expressions change dramatically.
There's also a lot of text!! The text for each erotic scene has been carefully and thoroughly created, and Imagine what would happen if an adolescent brother and sister actually had sex...!?
The older sister reluctantly accepts her brother in order to escape, and the younger brother's head is filled with the softness of the woman he's touching for the first time...
Enjoy the realistic action between these two. For lovers of sister-brother incest
This work is recommended for fans of sister-brother, incest, and older-person stories. Be sure to check out this heartwarming story about a close brother and sister... It will warm your heart and your body.

“As long as we’re together, it’s just like heaven to me.”

Tucked away in a quiet corner of the world, in a peaceful countryside far from the bustle of the city, a brother and sister share gentle, unhurried days.

Delicate in health, the sister has come to the rural estate to recuperate.

Her brother stays by her side, weaving tender moments into the fabric of summer.

Gathering dew at dawn, cloud-watching on lazy afternoons, walking home hand in hand at dusk, and whispering secrets under the stars—

Even the smallest fragments of time sparkle when shared with someone precious.

This is a delicate tale of companionship and care, of protection and dreams.

As time flows slowly through this pastoral setting, witness a quiet yet unwavering love quietly bloom.