Chapter 600 Crystal Icefield_1

Alright, the level of this world is indeed not high, only fifth tier. Otherworlds are typically seventh tier or above, with sixth tier ones quite rare. The fact that the academy managed to obtain two fifth-tier Otherworlds for use clearly shows its substantial resources.

However, even a fifth-tier world is quite advanced for me.

Threats could come from anywhere in a world like this - who knows what's out there. "Thankfully, the advancement mission doesn't necessarily require completing the ultimate goal, otherwise I'd choose to give up right away," Du You muttered to himself.

He had some basic understanding of advancement missions. They usually involve a major task, with completion hinging on progress. If the progress is satisfactory, he could submit the mission early without necessarily smashing the Ice Snow Crown.

As long as he was careful and met his own progress requirements, he could leave.