>>49607244
Personally, I'm more interested in the reunited Ibaraki Douji, but if it was just the Arm, the most oni-like oni of all, the biggest thing would to be an upright and honest person. Don't be craven or cowardly, and when you give your word, make sure you keep it. Worst case scenario if you can abide by that much is that you'd be liable to earn her respect. Becoming strong enough to be comparable to her would also probably earn a lot of points.