There might be a group of friends as the main characters. They meet under the mango tree regularly, and their friendship, their adventures together, and the conflicts that arise among them form the core of the story.
The main characters are the boy and the mango tree. Simple as that.
It could also be about change. Maybe the story uses the mango tree as a constant while the characters around it go through various changes. The tree witnesses their growth, their joys, and sorrows, and through this, the theme of change and the passage of time is explored.
I don't know for sure, but it could be a family. Maybe there's a wise old grandfather who has been taking care of the mango tree for years. There might also be a young boy or girl who loves to climb the tree and play around it.
The main characters are the fat girl and the mango tree. Obviously, the fat girl is a human character who will probably have some sort of actions, thoughts, or experiences related to the mango tree in the story.
The main characters are the stepmother, the stepson, the sister, and the father. The stepmother is the villain, the stepson is the victim, the sister is a key figure in bringing the stepson back to life, and the father is somewhat oblivious to the stepmother's evil deeds.
It's likely that there's a character who has a special connection to the wishing tree. Maybe an old man who has been guarding the tree for years. And then there are the villagers or people from the surrounding area who come to the tree with their various wishes. There could also be a character who doesn't believe in the tree's power at first but then has a change of heart.
I'm not entirely sure without reading the story in detail, but it could be a young protagonist, perhaps a person who is at a crossroads in life.
Since I'm not familiar with this story, it might have a variety of characters. Besides the talking tree, there could be an old hermit who lives near the tree and has a special connection with it. There might also be some forest animals like a curious squirrel or a wise owl that interact with the tree.
Obviously, the boy and the tree are the main characters. The boy starts as a young child with simple desires like playing in the tree's shade. As he grows, his needs become more complex. The tree, on the other hand, is a constant presence, willing to sacrifice parts of itself to meet the boy's demands.
The two main characters are the tree and the boy. The tree is very giving and loving, always there for the boy.