What if the Tenth Doctor from Doctor Who joined the classic Disney tale of Beauty and the Beast? How would he change the story and the fate of the characters? Here's my version of how it could go:
The Doctor lands his TARDIS in a small French village, where he meets Belle, a young woman who loves reading and dreams of adventure. He is instantly intrigued by her intelligence and curiosity, and decides to join her as she goes to return a book to the local bookstore. Along the way, they encounter Gaston, a vain and arrogant hunter who wants to marry Belle, but she rejects him. The Doctor is disgusted by Gaston's behaviour, especially after he shoots a young goose in an attempt to display his manliness, and warns him to leave Belle alone.
Meanwhile, in a nearby castle, a prince has been cursed by an enchantress for his selfishness and cruelty. He has been turned into a monstrous beast, and all his servants have been transformed into household objects. The only way to break the curse is for him to find and earn true love before the last petal falls from an enchanted rose. The Beast has lost all hope and lives in isolation and despair.
Belle's father Maurice, an inventor, gets lost in the woods and stumbles upon the castle. He is captured by the Beast and locked in a dungeon. Belle, worried about her father, goes looking for him with the Doctor's help. They find the castle and Belle offers to take her father's place as the Beast's prisoner. The Beast agrees and lets Maurice go, but keeps Belle in his castle. The Doctor sneaks in and hides his TARDIS in a secret room. The Beast discovers the TARDIS and is initially distrustful of the Doctor, but Belle reassures him he is no threat to him.
The Doctor tries to befriend the Beast, hoping to find a way to lift the curse, and befriends the castle's servants, such as Lumiere, Cogsworth, Mrs. Potts, and Chip, who assist him in his plan. Along the way, he learns more about the Beast's past and his true nature, and helps him become more gentle and compassionate. He also encourages Belle to see beyond the Beast's appearance and discover his kind heart. He tells them both stories of his travels across time and space, and shows them his sonic screwdriver, which he uses to fix some of the castle's broken mechanisms, earning the Beast's trust in return. Belle is fascinated by the Doctor and his gadgets, and begins to feel more comfortable in the castle.
The Beast also starts to develop feelings for Belle, and with the Doctor's encouragement, invites her to have dinner with him. He gives her a beautiful dress and a necklace with a rose pendant. He also shows her his library, which is full of books from different eras and planets. Belle is overjoyed and thanks him for his generosity. The Doctor watches them with a smile, knowing that they are falling in love. However, he also knows that Gaston will not give up easily, and that they will have to face him in a final showdown.
Gaston is furious with rage that Belle has chosen the Beast over him. He rallies the villagers to storm the castle, steal the Doctor's TARDIS and kill the Beast, using Maurice as a witness to convince them that the Beast is a dangerous monster, and the Doctor is practicing witchcraft. The Doctor learns of Gaston's plan and warns the Beast and Belle. He tells them to escape with him in his TARDIS, but they refuse to leave their home and their friends. The Doctor respects their decision and decides to stay with them to fight Gaston.
The villagers arrive at the castle and attack it with torches and pitchforks. The enchanted servants fight back with their own weapons, such as pots, pans, candles, clocks, etc. The Doctor joins them with his sonic screwdriver, disabling some of Gaston's guns and traps. He also helps Maurice escape from Gaston's clutches and reunite with Belle.
Gaston manages to reach the tower where the Beast, heartbroken from feeling he has lost Belle forever, is hiding. He shoots him with an arrow and stabs him with a knife. The Beast is too weak and depressed to fight back, but when he sees Belle running towards him, he musters his strength and easily overpowers Gaston, throwing him off the balcony, sending him falling to his death.
Belle rushes to the Beast's side and confesses her love for him just before the last petal falls from the rose. The Doctor watches as a miracle happens: the curse is lifted, and the Beast transforms back into a human prince. His servants also regain their human forms, and they rejoice in their freedom. The prince kisses Belle and thanks her for saving him. He also thanks the Doctor for his help and friendship.
The story ends with Belle and the prince dancing in the ballroom on their wedding day, surrounded by their friends and family. They thank the Doctor for his help and wish him well in his travels. They also hope that they will see him again someday. The Doctor smiles as he watches them from his TARDIS screen, then sets off for his next adventure.