Seiken Tsukai no Proposition 聖鍵遣いの命題《プロポジション》 Last update from vndb at 2016-05-14 Release date: 2016-05-27 Original language: Brand(s): UnicoЯn Aliases: Proposition to the Holy Key Contractant Sekapoji Description & Story Seiken Tsukai no Proposition is the debut game by new brand UnicoЯn. Walkthrough http://seiya-saiga.com/game/unicorn/sekapoji.html Website(s) http://unicorn.la/product/01sekapoji/index.html