[IndigoArms]

Quote:

Originally Posted by zenstrive

Happens many times in Kamen Rider franchise

Ryuki, Faiz to a degree (boy, so many kamen riders), initial part of Hibiki, heck technically the riders in Den-O are satellite characters, main character is just a singularity point.

Ryuki I feel works, as Shinji was like the bright spot when most of the Riders were assholes.
I feel I don't include Build as Sento has a unique personality than other Riders, like he comes across as egotistical and witty, like I feel he's someone you could meet on the street.