the reason why Mitsuba had to die is because she was the only female character who hasn't revolved her personality around a man
Some might say Krul was also like that but I argue that even though she wasn't romantically interested in any guy, the way her character changed after it was revealed she had older brother was just something else. Like, she literally went from threatening Mika to break his hand because he was questioning her to not doing anything when Shinoa and Mitsuba vomited all over her. She also became completely uninterested in anything that wasn't her brother even though in the begging of the series she was clearly caring about her position among vampires. And was generally more passive than before.














