What are the possible character traits of Harry's protective twin brother in fanfiction?

Often, he is brave. Just like Harry himself, he doesn't shy away from danger when it comes to protecting his younger brother. For instance, he might stand up to Voldemort's followers without hesitation.

He might be more edgy. Since Anko has a bit of a wild side, Naruto could pick up on that. He could be more secretive too, like Anko. Also, he might be more into unorthodox ninja techniques as Anko is known for her unique skills.

She could be shy and reserved, in contrast to Sakura's more assertive nature. This shyness might make her seem mysterious at first.

I've also heard of 'Twin Guardianship'. In this fanfic, the twin brother is more attuned to the secrets of Hogwarts. He discovers hidden passages and rooms that can be used as safe havens for Harry. He also forms alliances with some of the more mysterious creatures in the school grounds to keep an eye on Harry from all angles.

One common theme is loyalty. The twin brother is always loyal to Harry, standing by him no matter what. For example, in many of these fanfics, when Harry is wrongly accused, the twin brother is the first to defend him.

Lemon could be brave like Harry. Since they are twins, she might inherit the same Gryffindor - like courage. She could be the type who doesn't shy away from standing up to bullies at Hogwarts, just like Harry does with Draco Malfoy.

Often, the mates can have diverse traits. For example, a mate could be highly empathetic, being able to sense others' emotions. Another might be a bit of a rebel, challenging the norms of the wizarding world. And there could be a mate who is extremely resourceful, finding solutions in the most difficult situations. The fourth could be the calm and collected one, providing stability to the group. These traits help them support Harry in different ways and create interesting storylines within the fanfiction.

Ryan could be more adventurous than Harry. Maybe he's always the one to take risks first, dragging Harry along on his escapades. This trait could lead him to explore areas of the wizarding world that are off - limits or dangerous, which in a WBWL scenario could have major consequences for the story.

One reason could be that they see Harry as a powerful ally. They know his skills and abilities, and they want to be on his side.

One such fanfic could be 'The Twin's Bond'. In this story, Harry's twin brother is always by his side, protecting him from the various threats at Hogwarts. He uses his unique magical abilities, which he has developed through secret training, to keep Harry safe.