Sasuke Uchiha in Harry Potter

Memories

London. On the night of July 15, 1988, in a forest, a dimensional rift opens, and someone emerges from it, falling unconscious to the ground.

The next day, Sasuke, who was unconscious, begins to wake up.

Sasuke: Ah... Where am I...? Why do my clothes feel so big? - he says, looking at his hands in surprise. Quickly, he heads to a nearby lake to see his reflection.

Sasuke: WHAT THE HELL IS THIS?! - he screams - Why have I turned back into a child?

Sasuke closes his eyes in an attempt to feel the presence of Naruto, Kakashi, and Sakura, but he can't sense anything.

When he looks at the lake again, he activates his Eternal Mangekyou Sharingan.

Sasuke: Well, it seems I still have the Sharingan, but the Rinnegan appears to be blocked. Plus, I look like a seven-year-old - he says to himself. - Better test my abilities.

Sasuke improvises some clothes and climbs a tree to start jumping from tree to tree, looking for an open field to test his skills. After nearly an hour, he finally finds an open field. He heads to the center of the field and begins to make some hand seals.

Sasuke: FIRE STYLE: FIREBALL JUTSU.

He is surprised by the size and duration of the jutsu. Furrowing his brow, he raises his hand slightly.

Sasuke: CHIDORI.

The electric jutsu manifests in his hand. Sasuke runs at high speed to strike a large rock, which is instantly destroyed. He tries to perform Chidori again but fails. He tries repeatedly, but nothing happens. It seems he can only use Chidori once.

Sasuke: Even my chakra has diminished. I'll have to train my skills as I did before graduating from the ninja academy. Damn, this can't be happening.

Sasuke waves his hand forcefully, and a small gust of wind manifests.

Sasuke: What was that? It appeared when my emotions were altered.

Sasuke quickly grabs a leaf to detect the nature of his chakra. He is surprised to sense a slight affinity for wind in addition to his lightning affinity.

Sasuke: It can't just be that. I've never heard of chakra manifesting through emotional alteration.

Sasuke sits down and begins to meditate to feel his own chakra. Upon finding mental peace, he senses a different energy along with the chakra in his body.

Sasuke: I'd better find a place to spend the night and something to eat.

Two months pass since he arrived in this world. Due to the training he has been doing, his ninja skills are progressing rapidly. He has already conducted a reconnaissance of the area, which makes it easier to find food.

After getting used to the terrain, he decides to go to the city to gather information.

Upon arriving in the city, he is surprised to see that people are speaking a different language. He doesn't understand anything they are saying.

To avoid drawing attention, he decides to walk through the dark alleys.

Thief 1: Kid, are you lost? - he says in English.

Thief 2: Come here. We'll help you.

Thief 1: Why don't you speak, kid?

Both pull knives from their waists.

Thief 1: Hand over all the money you have, unless you want a big scar on your face.

Sasuke still doesn't understand anything, but one thing is clear to him: these guys are stupid for threatening an Uchiha.