After learning about the spatial crack, Lu Yan's mood was slightly heavy.
If the matter was not stopped, the peaceful life humans had painstakingly maintained would probably be quickly broken.
This also deepened Lu Yan's desire to urgently increase his strength.
The Netherworld Soul Scythe had already been upgraded, increasing Lu Yan's strength greatly. However, Lu Yan still had other ways to increase his strength.
He still had a large number of credit resources.
After the reward, Lu Yan now had about 60,000 credits. This was a very large number.
Some students might not be able to accumulate so many credits from the moment they entered to the moment they graduated.
After leaving the principal's office building, Lu Yan directly brought Yuna to the school's treasure vault.
Looking at the door of the school's treasure vault in front of him, Lu Yan took a deep breath, and his expression became firm.