Okay, now we're back in Hiroshige's physics prep room, where Hirohige is trying to convince himself that he's really a genius. He's been working on his theory for a while now, and now he feels like he can do anything he wants in the world. He wants to leave school ASAP, so he tells her to give him three days to come back and finish his homework. She's glad to hear that, because it seems like her son's gone off to the war, and she wishes that he could've been with her. She tells him to stick to his studies, and he agrees.