Shishunki Sex Episode 4

Tsubaki finds and pays attention to the Okazakis who are enjoying bringing in an erotic book in the classroom.
The seriousness and harshness of the character made him disgusted by the hand and the tone became severer than ever.
On the way home after school, I was reminded that I was deceived by Okazaki and showed off the page of the erotic book.
Even so, the erotic book is falling as if it is attacking the niece which does not fit.
I did not want to touch it, but because it was placed in a prominent place, the page would open if I grabbed the end of the book when trying to move it to a place where at least the eye could not see it.