The Clash is the forty-sixth chapter of the Oushitsu Kyoushi Heine manga.
Heine and Licht head off for another day at work, but Bruno appears unexpectedly, having followed them. Bruno takes the news of Licht working as a waiter surprisingly well, thinking that this is a just a temporary job experience lesson like the time when he taught the children at the church. However, when Licht reveals that he's serious about this job, the brothers get into an argument over royal responsibilities versus the freedom to choose their future. Their fight is only broken up by Heine, who tells Licht to reexamine his plans. As Licht considers what to do, he is approached by Count Rosenberg, who offers his service to him.