After the girls of beacon rejected Toad, he ran off to let off some steam, he ended up in an abandoned lab where nasty experiments were being conducted. One of the experiments was activated and attacked Toad. The incident was being seen in the academy's amphitheater. The girls saw what's happening and saw Toad facing off against the experiment and said "I'm not afraid to die. I don't care what happens to me! Nobody would care I died!" this broke the girls hearts and deeply regret rejecting him.
8 parts