Ukitake very first seems in Rukia's flashback when she's contemplating whether to help out Ichigo in his battle. It appears from Rukia's mermory that he was both of those a buddy and teacher. When Google Dorking can be used for reputable uses such as looking into a website's stability vulnerabilities, https://hbscasestudyanalysis42994.theobloggers.com/44218981/case-study-analysis-fundamentals-explained