There's also Vil Schoenheit. His beauty - obsessed and perfectionist personality can interact in various ways with Female Yuu. Additionally, Idia Shroud is paired with Female Yuu in some fanfictions. His introverted and tech - savvy nature can form an interesting bond with Female Yuu as she tries to draw him out of his shell.
Some popular themes include friendship. Female Yuu often forms deep bonds with the other characters in the Twisted Wonderland universe. Another theme is self - discovery. As she navigates this strange new world, she learns more about herself. Magic exploration is also common. Since the world is full of magic, she might be on a journey to understand and master different magical elements.
Often, Lenalee Lee is paired with Kanda Yuu in these fanfictions. She and Kanda Yuu could be involved in projects to help the survivors of the war. Their different personalities, with Kanda Yuu being more brooding and Lenalee being more empathetic, can create interesting dynamics. And there are also fanfictions where he is paired with Bookman, as they might exchange knowledge about the world post - war and how history is being rewritten.
Naruto and Sasuke are the most common pair, no doubt. Their story arc in the official Naruto plot has so many layers that can be re - imagined in a slash relationship. But we also see pairings like Gaara and Naruto in some naruto slash fanfiction. Gaara's initially dark nature and Naruto's ability to reach out to him can be an interesting basis for a relationship in these stories.
Ochaco Uraraka is often a popular choice. Her cute and friendly personality makes her a likely candidate to be part of a harem. Tsuyu Asui is also common, with her unique frog - like quirk and calm demeanor. Momo Yaoyorozu is frequently paired as well, given her intelligence and leadership qualities. Additionally, Mina Ashido with her fun - loving nature can also be found in many harem - related fanfictions.
Another theme is power. As a female vampire, Yuu has certain powers. Fanfictions might explore how she discovers and controls these powers. Sometimes she may face challenges from other vampires who are jealous of her power or want to use her for their own gain.
For me, Malleus Draconia is one of the most interesting characters. His powerful magic and his somewhat aloof nature make him stand out. He has a certain mystery about him that draws readers in.
Yes, Mika does call Yuu 'Yuu-chan' in the manga.
There is also a fanfiction where Yuu, the female vampire, falls in love with a human. It shows how she tries to balance her vampire instincts with her feelings for this human, and the conflicts that arise from their different natures. It's really interesting as it delves deep into the emotional aspects of a vampire - human relationship.
Love and friendship are also common themes. The female Yuu may form new friendships or fall in love in ways that are different from the male Yuu. These relationships can be a driving force in the story, either helping her grow as a character or presenting new challenges. Additionally, themes of survival in the harsh world of Owari no Seraph are present, with the female Yuu having to use her wits and strength to stay alive.
I don't have enough information to say who the main characters are in 'asakawa yuu visual novel'.