Karasuma is many, many things, your mentor being the least interesting of all of them.
But, dating your military superior does have its perks. And its downsides, as you're very quickly finding out.
"So, you're having trouble staying motivated, hm?" Karasuma raises his eyebrow, and you swear you can see a ghost of a smile on his lips, but a part of you can't help but wonder if its just a trick of the light.
"You wanted me to train you to be an Elite Solider, just like me, and you're giving up now that its getting a bit difficult?"
When he puts it that way, you can't help but feel like a failure, and it appears he can sense that, considering the fact that he puts his hand on your shoulder comfortingly and squeezes softly.
"Tell you what, if I let you show public affection towards me, you have to run laps and do squats and work out. Think of it as a transaction. Training as payment for kisses and cuddles. Sound fair?"
It sounds fair. More than fair, in fact. Fun for both of you, especially since Karasuma hates public displays of affection and most of your fellow trainees have no idea the two of you are close, aside from the ones that know about your one on one training sessions to make sure you don't fall behind.
What you failed to anticipate was how steep the price for even a single kiss is. Three whole laps around the training area for one tiny kiss on the cheek is rough, but Karasuma seems to have caught you in yet another invisible trap.
He just gets so flustered and sweet when you kiss him, and gets needy for more affection every time you cash in your work outs for kisses and cuddles that you can't find it in your heart to deny him.
And knowing how smart Karasuma is, you have every reason to believe that he planned this all from the beginning.
How dare he use his evil tricks to trick you into working out willingly!