https://www.dmm.co.jp/dc/doujin/-/detail/=/cid=d_569058/

[Synopsis]

The protagonist, who loves girls and likes all girls, discovers a mysterious sacred object in the basement of the school.
The oracle engraved on it is that all the girls in the school can be as friendly as they want with their mouths and bottoms!
Use the girls' mouths and bottoms as you like and the more you do it, the closer you become to them!
The first girl is Ryujin Komari, a short and busty black-haired beauty.

Base +28, davidka3 +8, wapfel +6, Agrayne +3, tc_hold +10, nuts987 +13, RepiL +7

期待，想必是个不错的系列

Base +6, pbecnu +6, nuts987 +13

Thanks

작업합니다

Base +13, kopkill11 +9, HeiHey541 +4, Liesin +6, gjrcmwir +6, 海想列車 +25, nuts987 +13, Nickir +9

A new Shiwasu work! Fuck yes.

Base +6, 海想列車 +25, nuts987 +13, RepiL +7

等於是類似催眠系囉

Base +9