I'm not entirely sure as I haven't read it specifically. But generally, a light novel often involves a unique story with interesting characters. It might be about a war ('sennen sensou' could potentially mean 'thousand - year war') and the role of 'Aigis' within that context.
A skirt was a type of clothing that wrapped around the waist and was usually worn by women. There were many types of dresses, and they could be categorized according to length, fabric, style, details, and function. According to length, skirts could be divided into miniskirt, miniskirt, knee-length skirt, knee-length skirt, mid-length skirt, long skirt, and long skirt. According to the fabric, dresses could be divided into real silk dresses, mulberry silk dresses, fragrant cloud yarn dresses, woolen dresses, cotton dresses, and so on. According to the style, dresses could be divided into Korean dresses, elegant dresses, fashionable dresses, retro dresses, and so on. According to the details, dresses could be divided into lace dresses, denim dresses, chiffon dresses, floral dresses, halter dresses, striped dresses, two-piece dresses, ruffled dresses, long-sleeved dresses, short-sleeved dresses, sleeveless dresses, high-waisted dresses, hip skirts, pleated skirts, and so on. According to their functions, dresses could be divided into base dresses, formal dresses, nightdresses, suit dresses, cheongsam dresses, beach dresses, and so on. In short, there were many types of dresses, and each had its own unique characteristics and suitable occasions.
You could try looking for it in local bookstores that specialize in Japanese literature or light novels. Some large chain bookstores might also carry it if they have a section for international or niche literature.
Since I haven't had the chance to read the 'sennen sensou aigis eiyuu no kizuna light novel', I can only make some speculations. The title mentions a thousand - year war and the bonds of heroes. It's likely that the story unfolds in a long - lasting conflict. There could be a group of heroes with special armors or powers (implied by 'aigis'). Their bonds might be tested, strengthened, or even broken as the war progresses. There may be different factions, political intrigue, and personal growth of the characters within this war - torn world of the novel.
In 'Persona 4 Visual Novel', the gay persona might represent the diversity of the game's character creation and the exploration of different sexual orientations within the game's fictional world. It could add more depth to the relationships and storylines.
Perhaps the fanfiction focuses on the cultural clash between the two groups. The Persona 4 characters are from a small town, while the Persona 5 crew is from the big city. Their different ways of handling things and their unique Personas could lead to some interesting interactions. For example, Yu and Joker might have different leadership styles that they have to reconcile in order to succeed against the shadows.
A great plot could be that a new threat emerges that has the power to erase the memories of people in both Persona 4 and Persona 5's worlds. The characters from both games must work together to find the source of this threat. The Phantom Thieves could use their infiltration skills, while the Investigation Team could use their detective - like skills to gather clues. As they progress, they discover that the root of the problem lies in an ancient evil that was once sealed away but has now been awakened due to some modern - day events.
Yes. Persona 5 Royal adds new content that enriches the story. It has new characters and story arcs that blend well with the original plot. For example, the new character Kasumi brings a fresh perspective and her own story line that ties into the overall narrative in an interesting way.
Maybe the Velvet Room attendants from both games somehow get their worlds mixed up. Igor from Persona 5 and Margaret from Persona 4 have to work together to set things right. This leads to the characters from both games interacting. The Phantom Thieves might learn some new combat techniques from the Investigation Team and vice versa. They could then use these new skills to face a common threat that emerges from the merging of their two realities.