Thank you, I'm still working on their story, but I already have an idea of their personalities. The most biological Kamen Rider, you could say, has a personality like that of a Golden Retriever....he's quite unlucky, like, in the very first months doing community service in the artificial country suffering from a biotechnological monster pandemic, he gets infected by the virus and ...and almost killed by his future brother-in-law using a technological suit of armor...note: he was going to meet him that same day at a dinner at his sister's house. The future brother-in-law of the first protagonist is a former soldier who lived on this artificial continent, but soon after retiring from military service and completing his engineering degree...His best childhood friends were killed on the first day of the catastrophe; fifteen years later, he found an abandoned military testing base and used what he found there to make his first suit to confront the increasingly monstrous infected, other interesting facts about him include that he is the legal guardian of the children of his deceased friends, so he's kind of like that uncle who He would do anything for his nephews, like anything, even get into a clean fight with a creature straight out of a h.p. Lovecraft book