Akatsuki sends Deidara, Scorpion, to the Hunter World to capture a girl protected by the Phantom Troupe
At the same time, Itachi and Kisame went to investigate the Phantom Troupe.
Qi Ya and Xiaojie met the girl Yimiqi, and the three of them spent two years together. Unknowingly, a feeling sprouted in Qi Ya's heart.
Itachi and Kisame sneaked into the Nostra family to steal information about the Phantom Troupe, and met Kurapika who was a bodyguard there, which reminded Itachi of his promise.
There was no Hollow in the world, but it was inexplicably attacked by the Great Hollow, and Soul Society actually sent Captain-level Hitsugaya.
All stories begin in that high-rise building called Sky Arena...