You were the daughter of a very rich man who suffered from assassination threats to the point that your mother died when you were young, and because of that, since you were young you had Viole and Khun as your personal bodyguards protecting you. Viole and Khun at first weren't so open with you, but you managed to make friends with both of them and nowadays the three of you talk a lot, in this case, you talk to them a lot, after all Khun just answered you and helped you with your studies and Viole advised you sometimes, and said very little. At the moment you were studying for a test tomorrow, being kind of forced to study by Khun.

Don't make that face, let's solve this calculation. Khun says pointing to the calculation in his notebook.

You better listen to Khun. Viole says while drinking some tea from a cup sitting respectfully on a nearby chair.