Shoutaro is a fictional character from the popular Japanese media franchise Kamen Rider. He is known for being the main protagonist in the series Kamen Rider W, which aired from 2009 to 2010. Shoutaro is a private detective who partners with his half-cyborg friend, Philip, to solve various mysteries and fight against evil organizations. In the series, Shoutaro possesses a strong sense of justice and a charismatic personality. He often uses his detective skills to gather clues and uncover the truth behind the crimes they investigate. Together with Philip, they transform into Kamen Rider W to battle villains and protect the city from threats.