Kamen rider Ryuki x Oshi no Ko: The stars of survival

A beautiful idol popular in Japan, her name is Ai Hoshino, a beautiful 16-year-old idol. She is the personification of a pure, young maiden. But all that glitters is not gold. However, the story was dark when involve missing people.

The world is called Mirror World, a world opposite of the real world, a monster living inside a mirror called a Mirror Monster, feels people's life energy. One thing is for sure it was called a survival place for those people.

A young man who is a childhood friend of Ai Hoshino was visiting her concert and listening to her music until he saw a deck and drag into a war for many riders. But this is the romance story of Y/N L/N and Ai Hoshino through their story.