Fifty Years: The Beginning of Yamamoto and Araki's Struggle for the Captain-Commander Position!

Time flew by, and fifty years passed in the blink of an eye.

More than fifty years had passed since Shihoin Yoruichi, Kyoraku Shunsui, Ukitake Jushiro, and Tsunayashiro Tokinada had become captains in the Gotei 13...

Over those fifty years, Kyoraku and the other three, as newly appointed captains of the Gotei 13, disciples of the current Kenpachi Araki, and granddisciples of Captain-Commander Genryūsai, naturally drew the attention of countless Soul Reapers!

When Kyoraku and the others took office, rumors had even spread throughout the Seireitei that they had risen through the ranks only through their ties to Araki and the others, taking over the captaincies once held by the heads of the great upper noble houses.

Yet as time passed, every rumor proved groundless before the powerful Spiritual Pressure of Kyoraku and the others, each of whom possessed at least second-class Spiritual Might. After demonstrating their strength, the four naturally took control of their respective divisions. While becoming familiar with their duties, they also achieved outstanding results worthy of Araki's reputation!

By now, whether in seniority or strength, Kyoraku and the other three could be called veteran elite captains of formidable power within the Gotei 13...

Elsewhere...

Ever since Araki had visited Shutara Senjumaru and Mayuri Kurotsuchi at the Weave Nest fifty years ago...

Following Araki's wishes, Senjumaru had established the Department of Research and Development by combining the personnel and funding of the 12th Division under her command with the Weave Nest she had founded—her private laboratory. Although countless nobles had opposed the establishment of the Department of Research and Development, Araki had dealt with them one by one.

At the same time, during the fifty years since the Department of Research and Development had been established in the Seireitei, the 12th Division members, led by Shutara Senjumaru