I find it also helps to get inspiration, not just from books, but from other mediums like movies and video games for effective plot and all that breathes life into it. The largest inspiration for me regarding character development and interaction was the video game
Whatever works for a writer is the right thing to do.
No argument.
This is not in answer to this post, but somewhat to all book recommendations. And I'm speaking here of 'story', not plot.
My own advice would be, in creating story and character, don't enter the world of the imagination through secondary sources. Don't go to novels, TV, movies, manga, RPG, video games.
Instead use primary sources and nonfiction -- biography, letters, history, documentary TV, anthropology.
Real life is rich, deep, complex, awkward, untidy, open-ended, contradictory, vivid, original, true, strange, unmoderated and undigested.
Fiction is simplified, limited, strained through another person's vision, filled with hidden agendas, preconceptions and prejudices.
Find 'story' and characters in the real world.
The behavior of people in video games (or movies or manga) is to real people behavior as the behavior of the horse in a chess set is to real horse behavior.
Start your imagination with 'real life'. With the whole cloth. Cut those limitless possibilities to what
you need.
Don't start your fiction only with other men's garments, tailored and limited to suit their needs. Another person's suit, cut down, is always going to be smaller. Always going to be 'his' suit and not yours.