Actually, entering through the World Melting Furnace is the fastest, the least exhausting, sparing one the agony of Storm Valley's bone-scraping winds. However, Su Yang still didn't choose that option.
The situation in the Great World is unclear now; even though Dao Ji is certainly no match for the Kunpeng Great Saint Emperor, the Main God of the Guardian God has also emerged from the Guardian Land. Next, they might even invade the Nine Realms.
In such a scenario, if the World Melting Furnace is brought out and captured by the Main God, it would be troublesome.
Therefore, leaving the World Melting Furnace in Storm Valley is the safest choice.
It took Su Yang a full half month to bring out all the Demon Beasts under the Kunpeng Great Saint Emperor.
On the final trip out, Su Yang discovered that the Kunpeng Great Saint Emperor had returned and was standing in the air.
