Here is the full list of all 30 HentaiNYA achievements. It takes around 0-1 hour to unlock all of the achievements on Windows.
Miwa Rica Easy
Miwa Rica Normal
Miwa Rica Hight
Akira Rini Easy
Akira Rini Normal
Akira Rini Hight
Hana Easy
Hana Normal
Hana Hight
Azarni Easy
Azarni Normal
Azarni Hight
Sakura Easy
Sakura Normal
Sakura Hight
Agata Debra Jane Easy
Agata Debra Jane Normal
Agata Debra Jane Hight
Josephine Easy
Josephine Normal
Josephine Hight
Irene Christine Easy
Irene Christine Normal
Irene Christine Hight
Lucy Easy
Lucy Normal
Lucy Hight
Naomi Easy
Naomi Normal
Naomi Hight