Well, 'eroge tensei onee novel' might be a piece of literature that combines elements of eroge, which often have adult or sexual themes in Japan, but if we assume it's not that kind of content. It could be about a story where a character experiences a reincarnation in a world that has some unique features and an important older sister - like figure in the plot. Maybe it's about the character's journey and how this 'onee' character influences it.
As of now, Uta is indeed alive. The story hasn't depicted anything otherwise. Maybe there'll be changes in the future, but for now, Uta's part in the manga continues with them being alive.
There is also 'Steins; Gate'. This visual novel is famous for its complex time - travel plot. The story is full of twists and turns, and the characters are unique. It has been highly praised for its engaging narrative and scientific concepts.
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.