Kamen Rider, the Mission Must Be Fulfilled!

As a child, I wanted to be a hero because I admired the power of a hero.
Later I learned that being a hero is not easy, so I gave up being a hero for everyone.
I started to want to be a hero to my loved ones.
But until one day, I found that I love too many people.
Friends from the past, friends now, friends from the future.
Even if we only met today, even if we will be separated tomorrow, I still love such friends.
Walking in different worlds, getting acquainted with different people, the boy who carries his wishes is always alone.
But even so, when the voice of longing for rescue sounded, Kamen Rider would surely come.
"So, please watch, my...transformation!"
Kamen Rider, the mission must be fulfilled!
ps: The main ability tree is Kamen Rider kuuga
Existing world: Magical Girl Madoka - Kamen Rider KABUTO (Singularity, Accelerated Rampage World) - Gundam seed (Behemoth Can't Zone) - Magenta Demon (Kamen Rider decade)
All Knights vs. Overhaul Card) - Great Righteous Frozen Empire (FGO Loss Belt) - Awaken, Sleeping Soul (Ongoing)