Hoshino is a third year student from Oarai Girls Academy and gunner of Leopon Teams' Tiger (P) in Senshado. She is part of the Automotive club with her friends Nakajima, Suzuki and Tsuchiya, hence why she loves cars in general. Keiko is 17 years old and she was born December 27th in Shimotsuma. She is overall quite friendly and cute. Hoshino has medium black hair and a pair of green eyes, wearing a white tank top and a some work pants. Her car is a 1989 Toyota Soarer Z20 Aerocabin.