Shinobi Yoru Koi wa Kusemono

A long-standing feud exists between the Toujo and Toyoda families. Kanade, a shinobi, has been tasked with protecting Keigo, a Toujo family member, since childhood. Her role as a guardian causes tension, as Keigo prefers their relationship as childhood friends. Kanade's duty extends to school, where she encounters Eishi Toyoda, the Toyoda heir, and reacts with hostility. Following an attack, Kanade realizes Eishi is not what she assumed and discovers that dangers to Keigo come not only from the Toyoda family but also from within the Toujo family.