oshiro project re
Game's title: 御城プロジェクト:RE~CASTLE DEFENSE~ (Oshiro Project:RE - CASTLE DEFENSE)
Oshiro Project after renewal, opened in March 2016. Gameplay mechanics and sprites have been largely overhauled and certain girls have been removed or had their art changed.
External Links
"Game Portal": http://www.dmm.com/netgame/feature/shiropro.html