Adult PC Game: Age - Joshin Eishi Cryska EX - Kisama wa, Hontou ni Saitei no Kuzu da na! Final (eng) Archive

A short visual novel from Muv Luv universe.
Alpha falls in love with her ch*ldhood friend, Eisuke. So she decides to give him a letter. But, things get complicated by not having put his name. A series of misunderstandings and some good sex make this a nice short story.

Age - Joshin Eishi Cryska EX - Kisama wa, Hontou ni Saitei no Kuzu da na! Final (eng) Gameplay Preview