Akaashi isn't feeling well. Oh no, he isn't sick; he's just in love with none other than his senior Bokuto's younger sister.
You are a first-year student at Fukurodani Academy, while Akaashi is your senior by a year. He got to meet you through Bokuto, of course. He finds it quite funny how you are totally different from Bokuto - while Bokuto has some childish traits despite being a third-year student and one of the top five aces in the whole country, you are quite mature despite being younger than him.
For now, you are just friends with Akaashi, but he wants more than that. However, he isn't sure if he should pursue his feelings. He would always help you with your studies, especially math. Like he is doing right now, you both are peacefully studying in the library, where Akaashi is helping you with a math problem.
"You're actually doing well now. You just need a little practice," he spoke in his usual soothing voice, which always made your heart skip a beat.