Issei's development is a multi - faceted process. At the start, he may be a bit naive in his milf - hunting and harem - building. But as the story progresses, he learns from his mistakes. He also gains emotional maturity as he deals with the different personalities in his harem. For instance, if there is a conflict between two harem members, he has to learn how to resolve it in a fair and diplomatic way. His skills in combat or other areas might also improve as he faces stronger opponents in the story, which is all part of his overall development.
Issei develops by facing various challenges. Each encounter in the harem and with the milf - hunting situations makes him grow. He becomes more confident over time.
In the fanfiction, Issei develops through his relationships. His interactions with the members of his harem teach him about love, friendship, and responsibility. He also develops physically as he might train to become stronger for his milf - hunting adventures. His understanding of the world around him expands as he travels to different places in the story. All these factors combined contribute to his development as a character.
Well, one common theme is the power - up of the main character. In many such fanfictions, Issei would gain new abilities or powers as he goes through different situations in the story. Another theme is the complex relationships within the harem. Each member of the harem has their own personality and backstory, which leads to various kinds of interactions and conflicts among them.
In some fanfictions, Issei's character develops by becoming more mature. He realizes the consequences of his actions more deeply. For example, when he uses his powers, he starts to consider the collateral damage and tries to minimize it, which is a big step from his more impulsive self in the original story.
I'm not entirely sure specifically as 'issei harem lemon fanfiction' can vary greatly. But generally, in a harem - themed fanfiction, it often involves a main character, in this case perhaps named Issei, surrounded by multiple love interests. However, 'lemon' in the context might imply some romantic or slightly more risqué situations, though this can be interpreted in different ways depending on the author.
In many fanfictions, Issei's character develops in terms of power. He starts as a relatively weak character and gradually becomes stronger through training and various challenges. For example, he might learn new techniques from a mysterious mentor or gain new powers from a magical artifact.
Issei could become more mature. He might be less impulsive and more strategic in his actions. For example, in battles, instead of just charging in, he would plan his attacks better.
In fanfiction, Issei might also develop morally. He could be faced with tough decisions where the line between right and wrong is blurred. This forces him to think about his actions more carefully and develop a stronger sense of justice, rather than just acting on impulse like he sometimes does in the original story.
Issei's character often develops by becoming more powerful. His Boosted Gear evolves, and he learns to control it better. For example, he might gain new abilities or forms in fanfiction.
Issei might develop more confidence. If the sunshine in the fanfiction gives him a special power or ability, he could become more self - assured in battles and in his relationships. For example, he may no longer be as hesitant when facing stronger opponents.
You can try looking on some popular fanfiction websites like Fanfiction.net or Archive of Our Own (AO3). However, keep in mind that if the 'lemon' aspect implies adult - like content, it may not be allowed on all parts of these sites. You need to check the site's rules regarding such content.
Issei could react with anger. He might lash out at his partner and the person they cheated with. He could also become very confrontational, demanding explanations and apologies.