Yes, Serpico was based on a true story. It was inspired by the real-life experiences of Frank Serpico, a New York City police officer who exposed corruption within the police force.
The book Serpico is indeed non-fiction. It tells the true story of Frank Serpico's experiences within the police force and his fight against corruption.
The name 'serpico king story' is rather ambiguous. It could potentially be about a person named Serpico who has some sort of king - like status or a story where a king has an encounter with something related to 'serpico'. If it's a fictional story, it might involve elements of adventure, like the Serpico character going on a quest in a king - dom, facing challenges and making decisions that shape the story. But again, without more details, this is all speculation.
Guts is purely fictional. It's a concept or character that exists within the realm of imagination and creative storytelling rather than being based on reality.