Zanpakutō: Become Invincible from Summoning Xiaowu!

Travel through the world of Death. Akimoto Senji became the second son of the lower-class noble Akimoto family. However, he panicked. After all, this world is too dangerous, and he must be careful to survive until the end. His Zanpakutō is an extremely rare summoning Zanpakutō that can resurrect dead Hollows for his own use! After that, he successively conquered Nnoitra, Ulquiorra, Balegang, Stark... Aizen Sosuke: "Xiaowu, how dare you stab me in the back!" Yamamoto Genryu Sai Shigekuni: "There is no doubt that Akimoto Senji's power is almost as strong as my entire Gotei 13!" Yhwach: "What happened? My Knights of the Star Cross were wiped out like this?!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.