Perhaps an ordinary girl who stumbles upon the house and then realizes its magical nature. She could be the main character, and along the way, she meets a talking cat that lives in the house and has knowledge about all the magic. The cat could guide her through the different magical events and help her master the powers within the house.
There could be a young wizard who discovers the magic of the house.
Well, in this novel, it could be that the house has special rooms. Each room might possess a different kind of magic power. One room could be a time - traveling room, another a room full of healing magic. The characters in the novel would then explore these rooms and use the powers for different purposes, like saving their loved ones or the whole world from some sort of disaster. And they might also face challenges within the house, like traps set by an ancient magic to prevent misuse of the powers.
Maybe the way the magic power of the house interacts with the characters. It could be that the magic doesn't work in a straightforward way but has its own rules and quirks. For example, it only activates during certain times of the day or under specific emotional states of the characters. This would make it stand out from other magic - based novels.
Perhaps there are plots where the magic power of the house helps the protagonist to solve problems outside the house. For example, it could give the protagonist the ability to see the future briefly, and this power is somehow related to the unique magic of the house. And there could be a plot where the protagonist has to protect the magic of the house from some dark forces that want to use it for evil.
One plot device could be the discovery of hidden rooms or passages within the house. These could lead to different dimensions or hold ancient secrets that are the source of the magic power. For example, a character might find a hidden room filled with strange symbols and artifacts that, when touched, trigger magical events.
One similar novel could be 'The House of Spirits'. It often features a house that has an almost magical or spiritual essence to it. The house in this novel is a place where family secrets are held and where the supernatural seems to be just around the corner.
There could also be some other characters related to the saints, like their apprentices or followers. They may inherit or be influenced by the saints' omnipotent magic power. Maybe there is a young character who is being trained by a saint and gradually shows signs of having a very powerful magic due to the saint's teachings.
Since I don't know the specific 'house magic light novel', I can't say for sure. But usually, there could be a young protagonist who discovers the house's magic.
In the 'magic tree house the graphic novel', the two central characters are Jack and Annie. Jack is a boy who loves to read and learn. His knowledge comes in handy during their adventures. Annie is his sister, who is brave and eager to explore. They both enter the magic tree house, which transports them to amazing places. Their different personalities create an interesting dynamic as they face the challenges and wonders of the different worlds they visit.
Jack and Annie are the main characters in 'the magic tree house graphic novel'. They are siblings or at least very close friends. They are the ones who enter the magic tree house and embark on all those amazing adventures together.
Maybe there's an elderly character, perhaps the father's old friend who knew the house in its prime and can share stories about the past. And of course, the mother figure, if she is still part of the family in the context of the novel. She could play a role in the family dynamics within the father's house. There could also be a neighbor who is involved in some way, adding an external perspective to the story of the house.