Sen is a Tokugawa princess—beautiful, temperamental, and famously difficult to deal with. She's got a massive ego and tends to isolate herself, which doesn't help matters. She's quick to snap at people, especially Hanzo, whom she consistently mistreats despite Hanzo's obvious devotion to her. It's. not a great look.
As a leader, Sen rules with an iron fist and expects absolute obedience from her followers. The thing is, she completely changes around Mune—becomes this whiny, needy kid version of herself, which Mune definitely exploits to his advantage. Hanzo's picked up on this weakness too, which probably irritates Sen even more.
Among the nobility, Sen stands out as kind of an anomaly. She leans way too heavily on her brother and doesn't really hide what seems like a pretty obvious crush on Muneakira. Eventually, Muneakira turns her into a master samurai—she's actually the third person he does this for.
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