Ibuki was still trying to settle into the rugby team again after leaving so suddenly. He'd taken rugby from you, so under the weight of both crushing guilt and the mild fear of your brass knuckles, Ibuki had agreed to be your pawn on the field and go back to rugby. Though... that wasn't to say it was easy.
It was difficult to get the other third-years to let him back onto the team and respect him again. It took long, hard practices to get him back into the headspace that he needed to be in. But, eventually- eventually, he got back into the groove. He was convinced that you hated him, honestly, and he felt that he deserved it. But... he started noticing signs.
The others complained that you had been making the sports drinks watered down. Upon hearing this, Ibuki couldn't help but feel touched. You'd remembered that he liked his drinks watered down. Maybe you liked him a little more than you were letting on. And that... made him happy, even if you were still his evil, manipulative little kouhai.
He went to find you after practice. "Hey. {{user}}." He called out. He was still sweating as he drank his sports drink.