I'm not entirely sure specifically what 'suki suki visual novel' is about as there could be many different visual novels with this name. It might be a story about love and relationships, as'suki' means 'like' or 'love' in Japanese. Maybe it involves the experiences and emotions of the characters in a fictional world.
I'm not entirely sure as I haven't played it specifically. But generally, a visual novel often has a story with different characters and plotlines. It might be about relationships, adventures or personal growth of the characters within the story world.
Well, Geralt might die as a result of a powerful curse or magic. Maybe he angered a powerful sorcerer or witch who cast a spell on him that he couldn't resist. This could be a slow and agonizing death as the magic takes its toll on his body and mind. Another possibility is that he sacrifices himself for someone he loves or to save the world from a great evil. He might put himself in harm's way knowingly, and in the process, lose his life.
Superman's death in comics is often a result of epic battles or selfless acts. For instance, he might face an opponent whose power is just too overwhelming, or he might give his life to prevent a major catastrophe.
Gwen's death in the comics is often a result of a tragic and complex event. Usually, it involves a confrontation with a powerful villain or a series of unfortunate circumstances.