One possible theme could be mystery. Given the word 'himitsu' which means secret in Japanese, there might be a lot of hidden elements in the story.
Friendship could also be a theme. In many anime, characters come together and form strong bonds while facing various situations. In this anime about a secret garden, the characters might meet in the garden and develop deep friendships as they explore the secrets together, perhaps helping each other through difficult times and growing as individuals in the process.
Since I don't know much about 'anime himitsu no hanazono story', it could be a story filled with mystery and adventure, perhaps centered around a secret garden (hanazono means flower garden in Japanese) and the secrets within it. Maybe there are unique characters with their own stories and quests related to this secret garden in the anime.
One possible theme could be the search for truth. Since 'maboroshi' implies something not entirely real, the characters might be seeking to find what is real beneath the illusions.
Another theme could be mystery. The palace is likely to have many secrets, like hidden rooms or ancient artifacts, and the characters may be on a quest to uncover them, so mystery could be a strong theme.
Another theme could be the pursuit of dreams. The characters in Drake's anime story may have their own dreams, whether it's to become a great hero, an artist, or to find a special place in the anime world. They would face obstacles but keep striving towards their goals.
Power and control could be a major theme. If the world is 'mine' in the story, it implies that the character has a significant amount of power and control over the world they inhabit. Another theme might be self - identity. When one claims the world as their own, they are also defining who they are in relation to that world.
One possible theme could be courage. The characters in the story might face numerous challenges and need to summon their courage to overcome them. Another could be self - discovery, as they navigate through the events of the story and learn more about themselves.
One possible theme could be heroism. Characters in the stories might show great courage in the face of war.
Mystery is likely a theme. With the concept of five nights, there could be a mystery that unfolds gradually, like what is hidden in the cloud - related areas or what the true nature of certain events or characters is. Also, friendship could be a theme. In anime, friendship is often emphasized. So, the characters in the novel might form strong bonds as they go through the five nights together, relying on each other to survive or achieve their goals.
I'm not entirely sure as I haven't read it specifically. But generally, a light novel often contains elements like unique characters, a fictional story setting, and may involve themes such as friendship, adventure, or coming - of - age.
A group of friends might want to cosplay their favorite anime characters but have no money for costumes. So they use old clothes and DIY techniques to create their own versions. It could be a story of their creativity and how they still manage to look great at an anime event.