Most of the groups have suffered casualties; their members have been injured. This made their fragile bonds crumble.
Only the teams with strong members, especially the ones that consisted of the S and A sections, were able to survive.
As these teams got more confident, they went deeper into the forest and encountered that monster, which made their bodies shake.
Normal attacks didn't have any effect on him, nor did they have any weaknesses like other demonic beasts.
The worst was that these monsters always moved in groups of two or three. Even facing one of them was a struggle, which made it impossible to defeat them.
They terrorized the forest. It was then that many realized that Yellow Berry was above their level.
Many lost hope and decided to farm the other two berries; some students, unwilling to give up, decided to join forces.