Inside the dojo, Ailin patiently explained to Haruko how to arrange spiritual power, chant incantations, and finally release Kido.
Once Haruko had fully memorized everything, she began training in Kido under Ailin's supervision.
Whenever Haruko exhausted her spiritual power and was recovering it, Ailin would sink his mind into his Inner World and begin forging new weapons.
With the foundation of several thousand Zanpakuto abilities, forging weapons from other worlds was not particularly difficult for Ailin.
After all, "Unlimited Blade Works" already contained the elements of all "swords." With templates for thousands of abilities and the "prototypes" from the anime memories of his previous life, forging these weapons was a very simple matter for Ailin.
However, the most important purpose of forging these weapons was to absorb their owners' combat experience and improve himself. Thus, "Empathize Growth Experience, Recreate Years of Accumulation" was the greatest difficulty in Ailin's weapon creation.
Weapons belonging to protagonists or major supporting characters were manageable. Ailin could usually draw upon his anime memories and add a few details of his own to complete them.
The hardest ones were those wielded by people who were not especially important, yet possessed outstanding weapon abilities.
To give these weapons "Empathize Growth Experience," Ailin had to construct a "fan-made anime" in his mind with that character as the protagonist. Moreover, he had to sincerely recognize that "fan-made anime" himself before he could instill that character's growth experience into the weapon.
After all, if a weapon created by Ailin lacked its owner's combat memories, then even if Ailin used Muramasa's ability to materialize it, its strength would be far inferior to Zanpakuto that originally possessed memories.
What was more, to Ailin, the combat experience from these other worlds was far more important than simple weapon abilities.
If the combat memories