You need to have some conflict as soon as possible, once you introduce your characters and the basic setting.
Conflict is typically introduced in a story when there is a struggle or obstacle faced by the main character or characters that creates tension and drives the plot forward. This can happen early on in a story to hook the reader or be gradually introduced as the story progresses.
Expostition
The conflict is typically introduced in the exposition of a story. This is where the setting, characters, and background information are established, laying the foundation for the conflict that will drive the story forward.
A force that has been placed in proximity to a conflict or potential conflict and has not been introduced to hostilities.
character vs. nature
A story begins with exposition, where you are introduced to the characters and setting and conflict.
In "Amigo Brothers," the conflict is introduced as two friends, Paco and Antonio, must box each other in a competition. The conflict is developed through their internal struggle of potentially hurting each other while fighting. The story ends without a clear resolution, leaving the outcome of the fight to the reader's interpretation.
The part of a story we call "rising action" is that part where the tension and conflict increase until they reach the climax or peak of the story.
That part is typically called the inciting incident. It is the moment in the story where the main conflict or problem is introduced, setting the events of the plot in motion.
The conflict typically begins in the rising action stage of the plot, as this is where tension and complications arise that drive the story forward towards the climax.
The exposition is where the main characters and setting are introduced.
an outline of characters and setting which prepares the reader for the conflict.
Conflict can occur at any point in a story, including the beginning, middle, or end. It is often introduced at the beginning to set the plot in motion, developed in the middle through rising tension and challenges, and resolved at the end through a climax and resolution.