Tenderness, innocence, strength, strength and attack
Two-way storage, mind-to-mind communication, no need to summon, always with you regardless of day or night.
Everyone in the world thought that this cold and lonely young man grew up alone, and no one knew that since he was a child, the most powerful weapon spirit has been with him every step of the way.
He was never lonely in his young years. He had someone to block him in the wind and snow, and he had someone to accompany him on the road ahead.
When worldly ambitions grow, all forces covet the rare ice power, trying to break the contract and seize souls, breaking up the only symbiotic bond in the world.
The medium is the lock, and the mind is the witness.
Day after day, rain or shine, they never separated from beginning to end.
Purpose: Souls depend on each other, and staying together is the best destination.