It could be an old and wise Magi who has heard legends about the Cave of Wonders all his life. He decides to finally enter the cave in his twilight years, believing he can unlock its deepest secrets. His knowledge of Magi lore would be his greatest asset, but his age might also pose some physical limitations as he traverses the cave.
A female Magi who is an outcast in her society could be the main character. She sees the Cave of Wonders as a chance to prove herself and gain acceptance. Inside the cave, she discovers powers that are different from what is traditionally accepted in her Magi community, which leads to a conflict between her new - found self and the expectations of her people.
It could be about a young adventurer who stumbles upon the Cave of Wonders in the Magi world. They might face various magical trials inside, like solving puzzles that are guarded by magical creatures. Maybe they have to find a hidden treasure within the cave that is said to grant a powerful wish.
A powerful demon from another dimension could be the main antagonist. This demon could be attracted to the power that Sinbad wields in the Magi world and wants to steal it for himself. He could start causing chaos in both the world Sinbad is from and the world he's been transported to in the crossover.
The main character is probably Sue. In many stories, when a name is at the beginning like this in the title, it usually refers to the central figure. So in the 'sue cave story', Sue is likely the one around whom the plot revolves. She could be an explorer, a scientist, or just an ordinary person who has an extraordinary experience in the cave.
Perhaps Orochimaru would be a main character. Since he has a strong connection to the Ryuchi Cave, his presence could drive the story. He could be training a new apprentice in the cave or seeking some hidden power within it.
I'm not sure who the main character is in this 'tiny man cave story'. It could be a regular guy who just wanted a place of his own. Maybe he's a hard - working man who needed a break from his daily routine and so created this man cave. Or it could be a creative type who used this small space to express his creativity, but without more information, it's all speculation.
Since the title mentions 'mr little', I would assume Mr. Little is the main character.
Given the name 'little man cave story', it's probable that the main character is this 'little man'. He could be a child, or maybe just a small - statured man. It's also possible that the 'little man' is not so much about physical size but more about his social standing or his self - perception, like he might see himself as unimportant or overlooked in the world outside the cave, but within the cave, he is the king of his own little domain.
The main characters are Della and Jim. They are a young couple.
There are usually two main characters, often a couple. They are the ones who engage in the self - less acts of giving and sacrifice.
The main characters are Della and Jim. They are a married couple.