Board Thread:New Chapter/Episode Discussion/@comment-28524354-20160317005311/@comment-4107416-20160317012152

Because I guess they just decided to kill her off in the anime. I heard that she could still be alive in the manga (I'm not 100% sure since I've only watched the anime). If you want, you could try discussing the topic to an admin, I'm sure on of them would probably know more about this.