Coney Smith

Coney Smith is the main character in Kamen Rider Build. She's a genius in physics and engineering that lives in London. She also helps keep the people as her alter ego, Build. One day, she meets escaped murderer, Ryuuga Banjou, and helps him find who framed him while also looking for her lost memories.

Powers and Abilities
High IQ: Only partially because of her race, Coney has a ridiculously high IQ, getting a 600 "on a bad day." She has earned multiple doctorates in physics, engineering, and computers. She is also the inventor of many different things and has written many different papers on many different topics.

Immortality: Because of her father's experiments on himself, Coney stopped aging at the age of 30 and can not die of old age. She can die of sickness or by someone killing her.

Hazard Level: Because she is an Immortal Human, her Hazard Level can go over the lethal level for regular humans. At the end of Kamen Rider Build, her Hazard Level is at 7.4.

Equipment
Unlike other Kamen Riders, Coney made all of her equipment herself.