Owari Naki Natsu Towa Naru Shirabe

Also known as: 終わりなき夏永遠なる音律

2009 visual novel by phi-age. Though it is not revealed until later on, the game is set in the same world as Muv-Luv Alternative.

Characters

• Amamiya Kanon
• Koshino Karen
• Lieselotte Schreiber
• Oogami Ritsuko
• Orihara Ai
• Takanashi Mio