Everyone Changed Jobs, but I Was the Only One Who Changed Jobs into a Kamen Rider!

[National job transfer + Kamen Rider + Dungeon] The monsters are invading. In order to resist, mankind has begun an era of comprehensive job changes. Only by becoming a combat profession can we resist! Li Yuan, an 18-year-old boy, unexpectedly changed jobs and became the only S-class Kamen Rider when no one expected him? ! And he transformed into a high-level monster in front of his classmates, crushed all doubts, entered the top academy only for the strong, and became the envy of everyone! But because of this, he suffered the jealousy of others. The protagonist accidentally learned that the murderer of his mother was such a person? On the road to revenge and dealing with others, you must either become prey or stand at the top of the food chain!