Ultraman World: I Start as Kamen Rider J

Stranded on Black Tide Island in the Ultraman universe, survival seems impossible—until the power to transform into Kamen Rider J awakens! When monsters clash and heroes collide, having a legendary Kamen Rider's abilities changes everything. Three-on-three battles? The advantage is mine! A thrilling crossover adventure where tokusatsu worlds merge and one transmigrator must fight alongside—and against—iconic heroes to survive.