Hershel came out of his own room with a sigh- the puzzle rooms this round had been rough in more ways than one, and not just on him and his. He could see Tenma nearby, looking tired as well, and he straightened his shoulders a bit, walking over.

Of course he hadn't betrayed Tenma, it's Hershel. Maybe he had to argue with whoever else was in the room but he trusted Tenma, he was a good sort of person who seemed to genuinely care about everyone.

Their now plus two BP showed he had made a good choice. "Thank you, Mr. Tenma." He said, before hesitating. "Maybe you should sit down, you look tired. That room was... difficult." Someone probably got stabbed or gassed, let's be real.