Shinobi Yoru Koi wa Kusemono

Toujo family wants to overthrow the Toyoda family at all costs. The current successor, Keigo Toujo has a very skilled aid by his side - Kanade Kamazaki. A shinobi who joins the same all boys high school that Keigo attends. But Kanade is a girl! What will happen when the meek Toyoda successor Eishi Toyoda falls in love with her..?