In this short scene, we learn that we've finally met up with Professor Lu, who's been waiting for us for some time. He's finally back at the school, and he's super excited to see his old friend. He tells us that he and Professor Lu will be spending some time apart for a month and a half, and that he'll pay for their hotel and other expenses during the period. We're not sure what to make of this, but it sounds like a good plan.