Original Title: デュエリスト×エンゲージ
Romaji: Duelist x Engage
Released Date: 2011年04月08日 / 2013年08月23日 (Renewal Edition)
Company, Producer: Praline, WillPlus
Getchu Link: http://www.getchu.com/soft.phtml?id=695101
It was posted here before but all the DDL links are dead and one torrent uploaded on Nyaa...