Year: 2017
Release Date: 2017/01/27
Genre: Stockings, Glasses, Bikini, Milk, Toys, Big Tits, Anal, Blowjob, Titsjob, Footjob, Group Sex, Harem
Censored: Yes
Developer/Publisher: Atelier Kaguya Bare & Bunny
Platform: PC/Windows
Publication Type: Original (licensed)
Tablet: Not required
Game Language: English (AI TL by Shirok8, Carbynex)
Interface Language: English (AI TL by Shirok8, Carbynex)
Voice Language: Japanese
System Requirements (Minimum): OS: Windows Vista/7/8/8.1/10, CPU: 1.3GHz, RAM: 256MB, 1024*600, HDD: 3.54GB, DirectX: 9.0

Description
The protagonist fails his first time with his lover due to a past trauma. However, his older sister and cousin decide to help him overcome his trauma through sexual lessons. Moreover, even the person that causes him trauma participates too.

And so the older sisters' contest for the younger brother begins.