In fanfiction, Kurama is often depicted as calm, intelligent and elegant. His plant - based powers are usually a central part of the stories, whether he's using them for combat or for more peaceful purposes like healing. Yusuke, on the other hand, is usually portrayed as hot - headed but with a good heart. His impulsive nature gets him into trouble but also makes him a very dynamic character. He's also known for his strong fighting spirit.
I'm not entirely sure specifically what 'Showtime 1996 Bedtime Stories' is about. It could be a collection of bedtime stories presented in 1996 on Showtime. Maybe it features various fictional tales for kids to listen to before going to sleep.
To be honest, I don't have a definite answer. Sometimes shows take elements from real life and fictionalize them. It's hard to say for this one without more information.
Yes, there might be. The world of fanfiction is vast and diverse. With the popularity of both Harry Potter and the concept of Ryuji Jakkan (assuming it's a known or created concept), it's very likely that some fans have combined them in their creative works. However, it may not be as mainstream as some other Harry Potter fanfictions.
Yusuke would likely become more withdrawn. He was always a bit of a rough - around - the - edges character, but Keiko's death would make him more somber. He might lose his sense of humor that he sometimes showed around her.