In my opinion, 'Vanishing Time' is not a true story. It's more likely a product of the imagination of the writers and filmmakers, with elements designed to entertain and engage the audience rather than reflecting real-life incidents.
One possible interpretation is that it could be about a time in someone's life that they can't recall clearly, like a drunken night or a period of illness where days seemed to blend together and disappear. So it's a personal experience of time vanishing.
I'm not sure which specific 'Vanishing Time' real story you are referring to. There could be various things named like that, such as a personal account of time seeming to disappear during a strange event, or it could be a local legend in a certain area about a period of time that vanished mysteriously.
There are several possibilities. It might be an art gallery, displaying local artists' works on the first floor of that location at 918 Ocean Drive. This would attract art lovers and tourists alike. Another option is that it could be a rental office for beachfront properties in the area. They could be showing off pictures and information about the available places to stay right there on the first story.
Perhaps it's a gift shop filled with unique souvenirs. Handmade crafts, postcards with pictures of the ocean drive, and small trinkets that remind people of their visit to the area. It would be a great place for tourists to buy presents for their friends and family back home.
A prevalent theme is changing the future. By going back in time, Kuroko aims to alter events that will have a positive impact on his team's future. There's also the theme of friendship. When he travels through time, he may meet his friends at different stages of their lives, strengthening their bonds. In addition, the exploration of different time periods and how basketball fits into those historical contexts is also a common theme. This can add a unique flavor to the story, like how basketball was played in the past or how it could be different in the future.