Some of the Bleach captains could potentially ally with the angels. Considering their own sense of justice and the fact that they fight against evil in their own world, they might find common ground with the angels in the Highschool DxD setting. This alliance could be based on mutual protection and the goal of maintaining peace in the supernatural realm.
Well, the Bleach captains' abilities are quite powerful. For example, Hitsugaya's ice-based zanpakuto could be used in interesting ways in the DxD world. It could freeze demons in their tracks. Their spiritual pressure might also have a significant impact on the supernaturals in DxD. They could potentially intimidate lower - level devils or fallen angels just with their presence.
Naruto would form diverse relationships. He has a very friendly and determined personality. So, he could bond with Issei, the main character in Highschool DxD. They could share their experiences of growing in power and facing challenges. With the female characters in DxD, Naruto would probably be respectful and friendly. He might form a brother - like relationship with some of the male devils, especially those who value strength and loyalty. However, his relationship with the more traditional and strict angels might be a bit rocky at first, as they might view his powers as something not in line with their beliefs, but through mutual understanding, they could become comrades.
Percy might form an alliance with the Greyjoys. Given his connection to the sea, they would see the value in having him on their side. They could use his powers to gain an advantage in their naval campaigns. Another possibility is an alliance with the Starks. The Starks are known for their honor, and Percy, being a hero in his own right, would likely be drawn to them. Plus, they could use his powers to protect their land from floods or droughts.
Draco might form an alliance with the Lannisters. They are both power - hungry and cunning. The Lannisters' wealth and influence would attract Draco, and they might see his wizarding abilities as an asset. He could also form an alliance with the Tyrells. The Tyrells are known for their political savvy, and Draco could use their connections to further his own goals in Westeros.
He would be a very protective father. Given Naruto's own experiences growing up without parents and his strong will to protect his loved ones, he would be extremely vigilant in safeguarding his family in the Highschool DxD fanfiction.
Naruto would probably befriend Ichigo right away. They both have a strong sense of justice and a desire to protect their friends. Sasuke, on the other hand, might be more aloof at first. He could be intrigued by Urahara Kisuke's mysterious nature. Naruto would likely get along well with Orihime too, as she has a kind heart. Sasuke might have a more competitive relationship with Byakuya, seeing his power and discipline.
Well, Tiamat in her human form in fanfiction could be depicted as having a slender yet strong physique. Her skin might be pale as porcelain, giving her an almost ethereal look. She could be dressed in elegant, flowing robes that seem to move with a life of their own, and she may possess some sort of magical or supernatural jewelry that enhances her already considerable power. Maybe she has a soft, melodious voice that can charm or intimidate depending on her mood.
If we think about the relationships in a Bleach and Highschool DxD crossover. The devils in Highschool DxD are used to a certain hierarchy and power play. When they meet the Soul Reapers, who also have a strict hierarchy, there could be clashes. For instance, Rias and Byakuya might initially have a tense relationship. Rias is used to being in charge in her own way, and Byakuya is a proud captain. But as they see each other's sense of justice and the need to protect their respective worlds, they could start to work together. And for the students in Highschool DxD, they might look up to the more experienced Soul Reapers. The Soul Reapers, in turn, might be amused by the more carefree and hormonal nature of the Highschool DxD students. This could lead to a mentoring - like relationship in some cases.
Well, Issei's Boosted Gear could potentially combine with Ichigo's Zangetsu. The power - amplification aspect of the Boosted Gear might enhance Zangetsu's cutting ability. Imagine Issei lending his power to Ichigo during a tough fight against a powerful Arrancar or something.
One common theme is crossover battles. Writers often like to imagine how the characters from Bleach would fare against those from Highschool DxD in combat. For example, Ichigo might be pitted against Issei.