In the light novels, she seems to form a close trusting bond with Kiyotaka, and in volume 6 of the light novel, it is hinted that she develops a crush on Kiyotaka.
In the light novels, it is hinted that Sakura is the only person that Kiyotaka simply downright refuses to use and manipulate through his various grand schemes for the sake of their class. In volume 6 of the light novel, it is hinted that she develops a crush on Kiyotaka.