In the current world, the number of of people that died during the event at night was alot. Even with though some survived, the changes in most of them where not good.
Even if Situ wanted to go back to the way things were in the past, it would not work. He could feel the anxiety to become stronger, as such he spent the rest of the time in this part, just like that almost a year passed by.
Even through nothing changed, his comprehension of the Five Animal boxing had been improving greatly. He had already reached the great accomplishment stage.
The amount of power he could unleash was not something to look down upon, and his realm had reached the 9th stage of the essence Qi stage. He could progress any further regardless of the resources he consumed, but he felt his body becoming stronger, as such he didn't stop.