After this nameless kid(only some know his title as Shintō and he is known by his transformation, Lamia Noctis) became free from the rule of the hollows and understood reality which happened when he listened to his supposedly 1547th victim who he let go, he wanted to reverse hollowfication and so he became into his true form and researched, experimented on and studied the Hogyoku, Soul reapers(mainly Kisuke Urahara) and reverse hollowfication.