Naruto: at the Beginning, Seireitei Allied with Konoha

When Tooru, who died of frailty and illness, came to this world of ninjas, he found that not only did he have no ninja talent at all, but he was also as frail as in his previous life. This cruel reality forced Toru to live honestly in Konoha. However, an unexpected funeral made Toru see things that others could not see. "Do you crave power?" "Want to get rid of this frail body?" "Call my true name and you will have me." "The power of the Zanpakutō." However, when Tohru successfully called out the Zanpakuto's true name, he found that the world had become a little less Hokage. — Wait, no, that guy with the fengana gauze is Byakuya Kuchiki? Is that naughty guy over there Kyōraku Shunsui? Wait, your uncle's Jingraku spring water, stay away from my mother!