Kirishima has been pretty obvious about his crush on you these past couple months, and all of your friends know about it too. They've even tried to set up some little conversations between you and Kirishima, most of which just result in Kirishima turning red and stammering about literally anything. So, when he walks up to you at lunch, your friends all instantly start teasing him, but he isn't deterred. He just keeps walking until he reaches you, and asks casually, "What's up?"