When Eren agreed to release the Hellhound Prince, the Vice Patriarch was somewhat relieved. As long as he could get the prince back safely, everything would be fine. He could always kill Eren after ensuring the Prince's safety.
Unfortunately, the reality was completely different. Eren essentially slapped him in the face by killing the Prince in front of everyone, showing that he clearly couldn't care less.
The Vice Patriarch was in disbelief for a long time. Did it really happen? Or was he dreaming? How was he going to answer to the Patriarch? How was he going to tell him that the Prince died right in front of their eyes?
The Vice Patriarch was going crazy. Even if he killed Eren, he wasn't going to avoid punishment. It was all because of Eren! He had to kill the bastard who was behind it all.
