Imouto Kansatsu Nikki 2

Main character observes his sisters masturbating every night before going to sleep. As a brother, he decides to guide them. But as he starts to use information observed at night sessions during daytime conversations, but the relations between the siblings start to change at this point... [From [url=https://vndbreview.blogspot.com/2019/08/vn-of-month-october-2004-akai-ito.html]vndbreview[/url]]