Gripping manga. The story starts off well and gets better and better. Using Russian Orthodox Chistianity and history as the background lots of action is dished out. Each warrior can control an element from the periodic table. They can even form alloys. The story is set in a modern school with more girls than boys. There are ecchi strands and a spiritual milk plot. But its not fanservice. Its well woven into the story. The ecchi panels are not flashy and doesnt try to visually gratify. The anime made a hash of it.