The spiritual power storage spheres really are awesome, doubling the total amount of spiritual power at once!
However, they're pretty useless.
Under normal circumstances, Suming already had more than enough spiritual power to spare, so what was the point of doubling it? Was he supposed to apply for a Guinness World Record or something?
After releasing the spiritual power storage sphere, also known as the 'energy sphere,' from the conch pearl, a considerable amount of Suming's own spiritual power was restored.
Nevertheless, this upgrade seemed much more complex than when he first obtained his Soul Attachment Ability; unlike last time, not all the information popped up in his mind instantly. The specific effects of the evolution would have to be explored step by step.