Devil of silence

Unknown questions about the world, about the past, present, and future. Riki, a student at Seacoast Highschool, thinks a lot about these. Her life is normal until one day. A day when she saves 4 children. That day, she received her Shilobi powers. She needs to find out information and protect her friends. But it's so hard when a clan of powerful warriors hunts you down. What does Riki want to do now? Eliminate her enemies.