As graduation nears for Kyouko Hori, Izumi Miyamura and friends, they reminisce about their high school memories, cherishing the fleeting yet vibrant moments spent together.

A necromancer in a distant era incarnates himself into a young boy in modern Tokyo. But he gets caught in a mystery about the boy and his own past.

Everyone knows the most powerful soldier, the Ice Sword Wizard who led the country to victory three years ago, but few know his real name: Ray White.