Spoiler (highlight to view)
Just finished looking at volume 9 and shiho is dead. She was shot by that guy in the suit, and then help came. However, the old guy that wanted the heaven and earth technique stopped them and slammed his feet onto her neck. The kid's master went insane super powerful megazord power ranger form, and literally destroyed part of the roof by just stepping on it. The kid got in the master's way when he was going to utterly destroyed [i forget his name] the other kid that beat the student to death.
yeah this isn't so good of a summary, but it's late, i'm tired and felt like posting this. Damn it, shiho was one of my favorite characters. A love was lost in the series, and you can feel the pain resonate inside you from the artists ability to capture that moment and subsequent ones.