Ode to the Seven

Ryan Graytree wakes up in a strange room. I don't know who I am, I don't know where I am. Slowly he understood. He is a time traveler. This is God's world. And he is just an ordinary person. In this world, ordinary people are called "materials". Later, White Tower Academy invited him to be the assistant to the dean. Sounds like great luck. But he slowly discovered that he could hear some sounds that others could not hear. The voices came from the dead. From the volcano - the ruins of all unfinished wishes. For countless years, the wishes of countless mortals have accumulated, rotted, and dissipated there. No one heard, no one responded. They are the voiceless. And Ryan, for some reason, became the one who could hear it.