How does a manga with an old man protagonist becoming young develop the plot?

In the manga, the old mobster's transformation into a young girl could be a result of a scientific experiment gone wrong or a hidden power within them being unlocked. It's full of surprises and twists.

It develops through the Invisible Man's experiences. First, he's excited about his new invisibility. But then, he faces problems like cold and hunger. As he tries to solve these, he gets into more trouble with the people in the village. His actions become more desperate, and this causes the plot to move towards a more intense and dangerous direction.

The development of the young man's cartoon drawing skills can be influenced by many factors. His creativity, observation skills, and access to good tutorials or mentors can all play a role. Also, his passion and dedication to the art form matter a lot.

The plot develops through a series of events. It starts with the sighting of the umbrella man. Then, as the narrator interacts with him, more details emerge. His offer to sell the umbrella for a small amount of money is the first sign of something strange. As the story goes on, the plot thickens with the narrator's growing suspicion.

It could show how old technology affects the young man's life or how he discovers and uses it.

The plot often starts with the discovery of the old clock and its strange features or secrets. Then, the detective begins to investigate, interviewing people who might have a connection to the clock.

It could happen through magic or a special potion. Sometimes a sci-fi device might be involved.

It could be a magical adventure where an old man finds a way to regain his youth and has all sorts of new experiences.

Often, an old man becomes younger due to a scientific experiment gone right, or a curse being lifted. It could also be the result of a wish granted by a supernatural entity.

The relationship between the old man and the little cat develops in a very natural way. Initially, the cat might have just wandered into the old man's life, perhaps attracted by the smell of food or a quiet place. The old man, out of his kind heart, doesn't shoo the cat away. Instead, he starts to take care of it. He gives it milk and a corner to sleep in. As days go by, the cat starts to look forward to seeing the old man. It may wait for him at the door. The old man, in turn, starts to talk to the cat as if it can understand him. They build a connection through these small daily interactions. The cat becomes a part of the old man's daily life, and the old man becomes the cat's whole world. For example, when the old man is sad, the cat might curl up next to him as if to comfort him, and when the cat is in danger, the old man will surely protect it. This shows how their relationship has deepened over time.