Common characters include Ichigo, of course. Then there are the strong female characters from the original series like Yoruichi. She might be part of the harem in some fanfics. Also, other supporting female characters from the show might be added to the harem, and they all interact with Ichigo in different ways, creating various story arcs.
In ichigo harem fanfic, you'll often see Ichigo as the central character. Alongside him, characters like Tatsuki can also be part of his harem. There are also some original characters created by the fanfic writers that might be added to the harem to bring new storylines and relationships.
Ichigo himself is obviously a common character. And then there are often female characters like Orihime and Rukia who are frequently part of his harem in fanfics.
Orihime Inoue is often included in Ichigo's harem in fanfics. She has a pre - existing relationship with Ichigo in the original series, with her feelings for him being quite strong. Rukia Kuchiki is another common character. Her connection with Ichigo is deep, as she was the one who initially transferred her powers to him. Then there's Tatsuki Arisawa, who is Ichigo's childhood friend. In some fanfics, her relationship with Ichigo takes on a more romantic turn within the context of the harem. And Neliel Tu Odelschwanck could also be part of the harem. She has a unique bond with Ichigo, and her character's personality makes her an interesting addition to the harem concept.
Obviously, Ichigo is a central character. His female companions in the harem, like Orihime and Rukia, are likely to be common characters as well. They could be the ones who are pregnant or are involved in the events related to the pregnancies.
For Ichigo's harem, Orihime and Rukia are very common. Orihime with her kind heart and strong powers of healing, and Rukia being the one who introduced Ichigo to the world of Soul Reapers. In Naruto's case, Hinata and Sakura are often part of his harem. Hinata because of her long - standing love for Naruto, and Sakura being one of Naruto's closest friends.
Inoue Orihime from Bleach itself could be a part of the harem. Since she already has feelings for Ichigo in the original series, it would be a natural fit. Also, Saber from Fate/Stay Night. Her noble and powerful nature would contrast well with Ichigo's more rough - around - the - edges style. Another could be Rem from Re:Zero. Her loyalty and love - stricken nature could add an interesting dynamic to the harem as she falls for Ichigo.
An 'ichigo harem lemon fanfic' is a fanfic centered around a character named Ichigo. The 'harem' element suggests that Ichigo has a group of characters around them, which could be in a romantic, platonic or some other kind of relationship. The 'lemon' part is a bit tricky. In the fanfic world, it can sometimes indicate a story with adult - like themes, but it could also be used in a more innocent way to denote something that stands out or is a bit different in the story.
Rukia could be one of the characters. Since she has a deep connection with Ichigo already in the original series, it would be easy to develop a more romantic aspect in the harem setting. Orihime is also a likely candidate, as she has strong feelings for Ichigo. And from other animes, a character like Saber from 'Fate/stay night' could be interesting. Her noble and powerful nature would contrast with Ichigo's more rough - around - the - edges personality.
Obviously, Ichigo would be one of the main characters. And then, there would be the Arrancar characters who are part of the harem. But without more information about the specific fanfiction, it's difficult to name the exact Arrancar characters involved.
Obviously, Ichigo himself is a central character. From Fairy Tail, characters like Lucy could be part of the harem. Her kind and adventurous nature might be attracted to Ichigo's strength and sense of duty. Erza could also be there, with her strong - willed and powerful personality being drawn to Ichigo's unique abilities. And Wendy, given her gentle and healing nature, might also find herself interested in Ichigo.
There could also be some side characters from the original series that play important roles in the 'ichigo kidnapped fanfiction'. For example, the shopkeeper Kisuke Urahara might show up with his knowledge and resources to assist in the rescue. His assistants, Tessai and Yoruichi, could also be part of the story, adding their own unique abilities to the mix.
Rukia could be in the harem. She has a connection with Ichigo already and her strong personality might be drawn to the power and mystery of Hollow Ichigo. Orihime is also a likely candidate. Her kind and loving nature could be what makes her want to reach out to Hollow Ichigo and be part of his harem.