I'm pretty sure 'One Shot Two Shot' isn't a true story. It could be a fictional tale crafted to entertain or convey certain themes and emotions, not based on actual events.
Fujimoto's short stories tend to be concise yet impactful. He can convey a lot of emotions and ideas in a relatively short amount of pages. His use of visual elements is also crucial. The panel layouts and the way he uses images to tell the story contribute to the overall atmosphere and mood of the short stories.
A one-shot fanfic is a self-contained story that usually has a beginning, middle, and end within a single chapter or post. It doesn't have multiple parts or sequels.
A one-shot comic is a standalone comic story that has a complete plot and conclusion within a single issue. It doesn't continue or have multiple parts.
A one-shot manga is basically a self-contained comic that tells a full story in just one go. It doesn't have sequels or prequels. Sometimes these can be really impactful and showcase an author's creativity within a limited space.