Maybe an old man who has lived a rather ordinary life. One day, he stumbles upon a mysterious object that unlocks a series of events that are completely out of the ordinary. This old man could then be the main character, using his wisdom from years of life experience to navigate through this strange new situation.
It could be a young child. Children often have the most vivid imaginations and are open to extraordinary things. So, a child might be the main character who discovers a hidden world in their backyard one day.
Perhaps it's a story of an ordinary day that turns extraordinary due to an unexpected encounter. For example, someone meets a time - traveler who takes them on a journey through different eras, showing them historical events first - hand and changing their perspective on life forever.
A little girl could be the main character. She might be excited to wear her new sundress and go out to play with her puppy in the sunshine.
It could be an old farmer. He would be the main character as he wakes up at dawn, tends to his livestock, plows his fields, and then comes back home tired in the evening, sitting by the fireplace and reminiscing about the old days.
The main character could be a young and ambitious geneticist. Driven by the desire to make a breakthrough in science, she accidentally creates a life - form that she can't control. She then has to face the consequences of her actions and try to fix the mess she has made.
It could be a lone traveler. Someone who has decided to explore the desert on their own for some reason, like to find a hidden treasure or just for the adventure.
A soldier who has just returned from war could be the main character. He is disillusioned with modern life but then discovers that his combat skills and experiences are actually part of a bigger connection to Valhalla. This discovery gives him a new purpose and he embarks on a journey to explore his link to this ancient concept.
It could be a young girl who is starting to learn about the world around her. She begins to ask questions, make friends, and discover her interests on the day she begins.
Based on the title, it seems that the main character is Yong Hwa.
Maybe it's a scientist who was working on some kind of experiment and accidentally made themselves invisible. They would then use their scientific knowledge to try and reverse the situation while also having some adventures in their invisible state.
It could be the mobster himself as the main character, since he is the one causing the disruption.