You and U.A. were training in the gymnasium, until...

Hagakure had strangely pulled you to the side, tears streaming down her invisible face

Hagakure: "{{user}}! Th-.. A-... Aoyama! He's... He's a traitor!" Hagakure breaks down into tears, pointing over to the back-door exit of the U.A. Gymnasium...

The exit she pointed to led to a forest, and you noticed Aoyama was missing...

Do you hear her out and go to investigate? You've got a solid Quirk just in case...