Shinra's strength in the manga is quite significant. He's able to overcome various challenges and opponents with his skills and determination. His power keeps evolving throughout the story.
I'm not entirely sure as 'cloud healthcare shinra fanfic' could be very specific. It might be a fan - created story that combines elements of cloud computing in healthcare and something related to Shinra (which could be from a game, anime etc.).
The theme of discovery is also present in Celty and Shinra fanfic. They are constantly discovering new things about each other and about themselves through their relationship. And the theme of the supernatural world is often explored as Celty is a supernatural being and Shinra is involved in that world. This adds an element of mystery and excitement to their relationship in the fanfics.
I'm not sure specifically what a 'cloud janitor shinra fanfic' is about as it could vary greatly. It might be a fan - created story related to a character named Cloud who is a janitor in the Shinra organization from a particular game or series. Maybe it involves his daily experiences, his interactions with other characters in the Shinra setting, or some sort of adventure within that fictional world.
It depends on the specific manga. Sometimes the story progresses quickly, but in other cases, it might take its time to build up the plot and characters.
Shinra stands no chance against Goku. Goku has gone through countless battles and has mastered powerful techniques. His strength and experience give him a huge advantage.