https://www.dlsite.com/maniax/work/=/product_id/RJ01525564.html

[Synopsis]

The protagonist, who lives a reclusive life on his parents' inheritance, is visited daily by his cheeky childhood friend, Kotone, who comes to look after him.
The daughter of a former housekeeper and his mother's best friend, Kotone's breasts sway uncontrollably as she cares for him excessively.
The protagonist gradually finds himself unable to contain his desires and frustration.
One night, a mysterious QR code suddenly appears on the television.
When scanned, it installs a forbidden app that can, under certain conditions, make the target "obedient."
The moment he tests its power, Kotone's attitude changes completely.
She becomes completely submissive, unable to resist the protagonist's commands and does whatever he wishes, anywhere in the house...
The story unfolds with the obedient childhood friend in various locations around the house.
Losing virginity in the bathroom, urination restraint × penetration play in the toilet, nipple teasing in the entryway...etc.

Base +31, nuts987 +15