Shinobi Yoru Koi wa Kusemono  

For Ninja Love is Just a Bad Habit, 忍びよる恋はくせもの

The Toujo family aims to overthrow the Toyoda family at any cost, and their current leader, Keigo Toujo, has an exceptionally skilled assistant named Kanade Kamazaki. She is a shinobi who enrolls at the same all-boys high school as Keigo. However, there's one problem - Kanade is a girl! What will happen when Eishi Toyoda, the meek successor of the Toyoda family, falls in love with her?