In her quest for revenge, rogue samurai Mizu (Maya Erskine), the protagonist of Netflix’s stunning adult animated series Blue Eye Samurai, finds herself taking on a devastating side quest for Madame Kaji (Ming-Na Wen). Blue Eye Samurai follows Mizu, a half-white, half-Japanese woman and self-trained samurai, on her mission to track down the four white men who were in Japan at the time of her birth. Having been treated as a monster her entire life because of her mixed ethnicity, Mizu plans to kill all of them in revenge.

https://screenrant.com/blue-eye-samurai-why-mizu-killed-kinuyo-explained/