Kateikyoshi no Kishi Knight desu.

The situation is dire! Tooru Takasugi, a 17-year-old troublemaker who is studying, is on the verge of being expelled! Despite being at her wit's end, Tooru's mother seeks aid from the captivating mentor Kishi Naito. Will this polished tutor be able to rescue Tooru from failure and become her savior? Furthermore, why does Tooru experience fluttery sensations in her stomach when she's close to Kishi?