raw:https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_664775/
代@restday111上传，隔壁日常汉化不放源，白杨汉化预定

看來妹妹也是預定角色呢

Base +7, sidalin000 +4

[Synopsis]

One day after school, I witnessed my classmate, Nana Yushiro, masturbating in the library when no one else was supposed to be there.
She's popular among the boys as an "innocent-looking but busty type" girl but I saw a completely different side to her than usual.
The next day, I was called out by her - “I'd like to talk about something...”
And what came out of her mouth was an unexpected ''proposal''.
The protagonist finds himself toyed with by his classmate, who is sexy and busty, but is only known for being an innocent and pure girl.
This relationship gradually draws in the other women around them too..

*While the story eventually develops into a harem, the sex in this work is mostly with the girl on the cover.

Base +28, nuts987 +14

后记中就说了要后宫展开，下一话就是妹妹了

Base +8