Touka has always been a shadow in the background at school. And when he is summoned to another world along with his classmates, that doesn't change! Everyone gains top-tier abilities, except for Touka, who is considered a failure and cast into ancient ruins by the goddess Vicius. It turns out that his lower-ranked abilities might not be as useless as they seemed. Now, he seeks revenge against the goddess, and his true nature is revealed.