Lin Yu, an ordinary college student, received a mysterious delivery—Kamen Rider Decade belt—on his birthday. When he touched it, he was instantly involved in the diverse world of "Armor Warriors." With the power of the Imperial Cavalry to "destroy all worlds", he unexpectedly became the guardian of worlds such as "Legend of Light and Shadow", "Xingtian" and "Nava". The catchphrase "I'm just a passing Kamen Rider, remember it!" Is not only a declaration to the enemy, but also a self-deprecation of his status as a "foreigner". This is a love letter to Tokusatsu fans: when the Flame Dragon Knight's "Flame Sword" resonates with the Imperial Cavalry's "Drive Card", when the Xing Tianxia's "laws of heaven, earth and man" resonate with the Kamen Rider's "Spirit of Contract", the story has long transcended the battle itself. Lin Yu grew from a "passing bystander" to a "linker of the world". His journey confirmed that the true power of a hero begins with unwillingness to face a certain moment and ends with tenderness towards all life.
"The next time the world needs saving, I will be just a passing Kamen Rider, but this time, I won't pass by again."
