Keisuke Jin (神 敬介) is the main protagonist of the tokusatsu series Kamen Rider X, which is part of the larger Kamen Rider franchise. As Kamen Rider X, he is a cyborg hero who fights against the evil organization G.O.D. after his father is killed and he is mortally wounded. Rebuilt by his father's technology, Keisuke becomes a symbol of justice, using his newfound powers and Rider equipment to protect humanity and uphold his father's legacy. He is known for his strong sense of justice and determination.