Mystic Sumatra Art—Glove Slip!
After familiarising himself with the Skill, Inala began to use it more and more until he didn't need a physical Glove Slip anymore.
Upon activation, a stream of Prana covered his hand, with absolutely zero influence from him, 'Prana in its purest form. So, that's the secret.'
It was the Prana present in a Parute Fruit, in its purest form, without any body, mind, and soul influence of a living being.
This unattributed Prana seeped into an Information Slip and spontaneously morphed into a form suitable to wield the material—forming the Information Slip—as a Spirit Weapon. basically, like water occupying the shape of its container, this unattributed Prana changed to suit the material.