SOLITUDE(Girls Und Panzer×School Days)

This short story is pretended as the crossover of Girls Und Panzer and School Days.
But, in fact, this story is the crossover of commanders of Girls Und Panzer, and Itou Makoto.
For some reason, Itou Makoto has studied abroad to study Senshado alone, and will be surrounded by commanders of Garupan who have become his teacher, and will live the gorgeous daily life.
However, Darjeeling first and then Nishi Kinuyo confessed to Itou Makoto, and their relationships will begin to go wrong because they, 3 persons, had had the sexual relationships.
They're "The 11 Guys of The Senshado", not "The 13 Lords of The Shogun"