As the topic of a story is formulating in your mind, you must come up with the the probing question that the story is going to solve.
For example, in a coming-of-age story a teenager desires to be included in the popular group. The question might be “How do you join a group when you are an outsider?”
The quest for an answer drives the character’s motivation. At the end either the protagonist is now a part of the desired group or has come to an epiphany that membership is not what she really wants.
What if the main character sees an injustice in society and wants to correct it. The moral question would be “How do I motivate others to help me and what steps do I take to make things right?’
The character sees kids going hungry which impacts their ability to learn. How will the protagonist provide healthy meals on a consistent basis?
Another question is motivation. What happened to the protagonist that made her see the problem/issue? Why does she feel the need to correct the situation? What knowledge does she have that allows her to be the organizer?
Your task is to create a situation in which your character has a burning moral question that he is compelled to satisfy. First, define the question. Then make a list of possible solutions.
Establish the society in which the character lives, works, plays. Put things in motion and see what happens.
Reread. If you are satisfied, great. If not, what changes need to be implemented?
Have fun with this one.