This is a story of a mother and a sister being stolen away and seduced by a stranger man.
One day, a stranger man suddenly intrudes into the protagonist's home. At first, everything seems perfectly normal. But as time ticks away, the bond between the protagonist's mother, his sister, and this man begins to grow tighter and tighter, while they drift further apart from the protagonist himself.
On the very night this man stays over, strange and forbidden moans begin to echo from the guest bedroom—and it sounds just like Mom...Furude Saeko
The protagonist's mother. A 38-year-old full-time housewife. After divorcing her husband a few years ago, she has been raising you and your sister all on her own. She has a very open-minded personality and treats you with immense warmth and tenderness—but she seems to be harboring a certain secret deep within...Furude Nadeshiko
The protagonist's sister. A gorgeous, fair-skinned "school idol" with outstanding academic grades. You two have grown up together and now attend the same high school as classmates. On the surface, she is a classic Kuudere—aloof, introverted, and clumsy at expressing her feelings—yet she always quietly cares for you. However, beneath that cold exterior, she seems to be hiding a dark, suppressed desire...Dual-Perspective Experience
Peeping POV + Bob's Phone Recording

Select events are experienced through a split perspective: the protagonist peeping through the crack of the door, and the explicit homemade video captured directly from Bob's smartphone.Fully Animated Dual Character Sprites
All outfits are now fully supported!

Bob boldly slides his hands right onto Mom and Sis's breasts—yet, they don't seem to care at all...Adult Forum & Face-to-Face Showdowns!

Browse explicit adult forums to watch the lewd videos recorded by Bob, and read the wild comments left by anonymous netizens online.
Take it a step further: show those exact online adult videos directly to your mother and sister's faces, and watch how they react!Intimate Interactions & Unexpected Surprises!

Enjoy sweet moments like hugging and kissing your mother and sister. However, as the story unfolds, if you try to force these actions upon them, something terrible might just happen...!Sneaking & Peeping: What Secrets Will You Uncover?

Sneak into the bathroom to spy on your mother and sister while they bathe, and inspect the dirty underwear they’ve just taken off. Under the cover of night, infiltrate their bedrooms to rifle through the private items hidden in their drawers, and even part their pussies to examine their most intimate secrets...Mom is Actually Pregnant?!

Watch as Mom's belly grows larger day by day! The game fully depicts her physical transformation through three detailed stages: No Bump → Small Bump → Big Pregnant Belly. Deep inside her womb, Bob's seed is slowly growing...!