I Am a Passing Kamen Rider

What should I do if I travel through time? Fortunately, those who travel through time appear with golden fingers. What, you can actually transform into a Kamen Rider, you can upgrade and unlock other Kamen Riders, and it also comes with other functions such as redemption and lottery. It's simply too powerful. Wait a minute, how come the system releases a mission about Ultraman? It's such a lie. The protagonist thinks he can defy the odds, but becomes increasingly miserable. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.