I became the strongest with S-Kill which is considered a weak skill part 1

Suddenly thrown into a fantasy world, Mimori Touka and her classmates have been summoned by the world's guardian goddess to become heroes. Luckily, most of the students showed extraordinary skills upon arrival except for Mimori, whose abilities were at a very low E rank. Because it was no longer useful, the goddess threw Mimori into a dungeon where no one ever came back alive. However, in fact, Mimori's skills are not useless, but also abnormal. Very strong in fact. If Mimori can return to the surface, nothing can stop her from taking revenge on the goddess who exiled her.