A story of a right-handed and left-handed fighter

The first part of the series Left-handed Goliath. Goliath is left-handed, forced to hide that truth for a long time behind a mask of arrogance to preserve the honor of his family, which inherited the title -Al-Saqil- for several generations. But no one was pleased for the left-handed Goliath to take all that advantage, so he devised his plot, and after that Goliath became incomplete. During the incident, meaningless oaths were made, so how will Goliath protect himself from them? And how will his friends decide to protect him from them? And who will be forced to submit under their weight in the end? And will that arm be a cheap price to break Goliath's laws of generations and nations?