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.
First, you can start by researching online. There are many websites and forums dedicated to graphic novels where people discuss their favorites. Look for the most recommended 'guts graphic novels' like 'Fun Home' which is a very moving and well - crafted graphic novel. Then, you can check out local comic book stores. They usually have a section for graphic novels. You might find some great deals there.
Well, some men start by sharing the triggers that led to their weight loss. Others focus on the challenges they faced and how they overcame them. It varies, but it's all honest and from the heart.
Perhaps in this fanfic, Griffith has turned into something truly evil and a threat to the world Guts cares about. Guts, being the warrior he is, might feel it's his duty to put an end to Griffith to save others. Also, Guts could be driven by his own sense of justice. If Griffith has wronged innocent people, Guts may decide that killing him is the only way to set things right.