Ni Yizhi accidentally traveled to the world of "Love Apartment" full of laughter and laughter. He thought he could live a relaxed and funny shared apartment life, but he accidentally activated the "Kamen Rider System".
However, the peace was broken - the evil organization "Time Robbers" from "Kamen Rider King" invaded the world and began to create "alien knights" in an attempt to distort history and rule this time and space without Kamen Riders.
In order to protect the peace of the partners in the apartment and the world, Ni Yizhi was forced to go into business. He used the power given by the system to transform into a Kamen Rider and stand up against the Time Robbers and enemies from all Kamen Riders.
On one side is the daily life of daily necessities and laughter, and on the other side is the fierce knight battle that affects the life and death of the world. Ni Yizhi switches between dual identities and uses the power of a knight to crush the enemy's conspiracy!
