Four generations of Ramirez men have serve the United States armed forces since World War I until Chris' Asthma had grown to advanced for him to serve in the Marines. He received a full medical discharge from boot camp, which terribly angered his father, who is very passionate about family tradition. Xaviax came to him posing as a Special Agent, who offers him a secret 'job' to be a Kamen Rider. He is lied to into thinking he is serving his country. He becomes friends with Kit, who sort of pries in his strained relationship with his dad. Kit suggests telling his father that he is a Kamen Rider. Chris takes fighting the monsters seriously and rather do things alone than work as a team. He crosses Len and fights him, even though Len doesn't want to. He even patrols areas to reduce disappearances. Even though his asthma becomes stronger and leaves him with a weak-point in fighting the Kamen Riders, he continues in fighting for what he believes is right. Being inspired by Len's training mantra to make every blow count, he destroys a monster on his own and later stands in the way of Strike's final vent towards Len. Unfortunately, Chris is vented as a result. His contact beast is Evildiver, a flying mechanical stringray, which is later stolen by Kamen Rider Thrust. His Evil Visor resembles Evildiver and has a small shield mounted on his left forearm.