In this fanfiction, the plot could be that Harry is on an adventure outside Hogwarts when he comes across a snake that seems different from the others. He feels a strange connection and takes it under his care. He has to learn about snake - specific magic to keep it healthy. The snake might be a key to unlocking an ancient mystery within Hogwarts, and as Harry takes care of it, they form a bond that allows them to communicate in a unique way, leading to a series of exciting events.
Well, maybe Harry discovers an injured snake in the Forbidden Forest. He decides to take it back to the Gryffindor common room and hides it in his trunk. He uses his magic to heal the snake and then starts to feed it small magical creatures. Eventually, the snake becomes his secret pet and helps him out in some tricky situations, like warning him of approaching danger.
The plot might involve Harry being given a snake egg by an unknown source. He incubates it in his dormitory using a spell he found in an old book. When the snake hatches, it is initially weak. Harry spends a great deal of time researching how to care for it, from finding the right food (which might be a difficult task as snakes in the wizarding world may have different dietary needs) to creating a suitable habitat for it. As the snake grows, it reveals some special abilities that help Harry in his fight against the dark forces at Hogwarts.
Well, it could be that the snake is a magical snake that was being hunted by some dark wizards. Harry takes it in out of kindness. The snake then forms a bond with Harry and becomes like his secret helper. For example, it could slither into places Harry can't go and gather information for him.
It could be a jealous Slytherin student. Since snakes are often associated with Slytherin, this student might feel that Harry has no right to take care of a snake. They could try to steal the snake or cause trouble for Harry, like spreading rumors that the snake is dangerous and should be removed from Hogwarts.
Maybe Harry discovers a baby snake in the Forbidden Forest and decides to take it under his wing. He could use his Parseltongue ability to communicate with it and keep it hidden from the other students and teachers.
One possible plot could be that after the death of Dumbledore and with the Order of the Phoenix in disarray, Harry decides to go into hiding alone. He uses his skills in magic, like the Patronus charm for protection and the Invisibility Cloak to avoid detection. He might start to forage for his own food in the Forbidden Forest, using magic to find edible plants and hunt small magical creatures in a humane way. He also spends his time studying advanced magic on his own to become stronger, preparing for the final battle against Voldemort.
One possible plot could be that Harry, using his magic skills, protects Naruto from the various threats in the Naruto universe. For example, he could use spells to shield Naruto from enemy ninjas' attacks. He might also use his knowledge of magic to help Naruto understand some concepts that are difficult in the ninja world, like a different way of looking at chakra manipulation which could be related to how magic works in Harry's world.
Well, Harry might use his magic to make the baby laugh. For example, he could turn the baby's rattle into a little magical creature that dances around. He'd probably also be very protective, like how he was with his friends at Hogwarts.
One possible plot could be that Harry discovers a time - traveling accident has brought baby Snape to his present. Harry, being the kind - hearted person he is, takes it upon himself to care for the baby. He has to figure out how to feed the baby, keep him clean and comfortable. Maybe he also has to protect baby Snape from any threats in the wizarding world that might target Snape even as a baby.
One possibility could be that Draco is forced into taking care of Harry due to some magical circumstances. Maybe there's a spell gone wrong that makes it his responsibility. He initially resents it but as he spends time with baby Harry, he starts to see the innocence in him and develops a soft spot.
Well, Naruto might be really confused at first. He's from a world of ninjas and suddenly has to take care of a baby wizard. He'd probably use his ninja skills to protect Harry. For example, he could set up traps around the house to keep bad guys away. And he'd surely try to feed Harry some ramen, which might be a bit strange for a baby used to wizard food.
The main antagonist could be a Slytherin student who has a vendetta against Harry. When they see Harry with the snake, which they believe should belong to a Slytherin, they start causing trouble for Harry. They might try to frame Harry for using dark magic with the snake or try to steal the snake to prove their superiority over Harry.