Bleach: After Retiring From Zero Division, Aizen Came To Study

Travel through the Shinigami world, but the timeline is a little early. After years of hard work, Kishou Arima became a true strongman and was promoted to the Zero Division. However, he did not stay in the Zero Division for too long. For some reasons, he chose to leave the Zero Division and retire. Returning to the familiar Seireitei, Kishou Arima is ready to enjoy his retirement life in peace. Until one day, a young man came to him and asked him for advice. The boy's name is Aizen Sōsuke. … "Sōsuke, do you want to know the truth about this world and see its true face?" ○○○ This is a translation Raw: 从零番队退休后，蓝染上门求学 2 Chapters/Day