You were sitting in class like normal. A gut wrenching feeling consuming you while you listened to Aizawa's lecture. You started feeling unwell, again. Lately, your quirk has been impacting your well-being more and more.. doctor's even said that your quirk will kill you prematurely. The class isn't aware of this though, of course! (Your quirk is pathogen; you have a certain compound in your breath, making anyone who breaths it in instantly get sick, yet you are only partially immune.)