After training with Pyrrha, Jaune went to bed and had a vivid dream. He found himself in an unfamiliar city that looked nothing like the four Kingdoms. Curious about the strange sounds he heard, he decided to explore the place. As a Huntsman-in-training and an aspiring hero, he couldn't ignore the possibility that someone might need his help. However, when he arrived at his destination, he was shocked to find that the city was overrun by zombies.
Jaune remained in the Dreamscape until he woke up in reality. He realized that every time he grew stronger in his dream, he also became stronger in the real world.
Jaune's transcripts were revealed by Cardin after he saved him from the Ursa. After that it was hell for him. He was beaten, bullied, and humiliated. The only people that stood by him are Ruby, Blake, his team, CFVY, and the Beacon staff. He was disowned and replaced by an adopted son that the Father said is useful compared to Jaune. After that Jaune requested to quit Beacon. After that he trek through the Emerald Forest where he ended up going through a portal due to being chased by Grimm and ended up in Chaldea. Jaune is now the last Master of Chaldea as he now brings his new power and his Servants to save Remnant.