>>538152582
>>538155673
Lip and she were just born when both were killed. They killed them because both wanted to eliminate Kazuradrop, who tricked everyone among the student council to think that she was good (disguised as White Sakura) and her sisters were enemies.

>>538156434
It's not good because Kazuradrop is the main villain in Foxtail. She got everyone else killed off-screen, including Andersen, Kiara, Alice, and other Masters and Servants that would normally appear in an EXTRA tale. Later, Kazuradrop tortures Hakuno and gets Protea and Shinji killed.