Just as Lin Yuan was preparing to form a contract with the Ethereal Jellyfish and was holding up the bottle that contained the light green spirit fluid, he suddenly realized the difficulty when forming the contract.
This spirit fluid contained highly concentrated spirit qi and was fused with spatial energy. To a certain extent, it was already a monopoly skill of Class 5 Creation Masters. Only Class 5 Creation Masters were able to concoct a spirit fluid with such spirit qi concentration.
A pinnacle Class 4 Creation Master might be able to use the Hollow Crystal Shellfish's powder to fuse with the spirit fluid perfectly and release the spatial energy from the Hollow Crystal Shellfish. However, it still wasn't possible to achieve the spirit qi concentration in this bottle of light green spirit fluid.
It also meant to say that this Ethereal Jellyfish could only be contracted with the help of a Class 5 Creation Master.
