A war veteran who has already had many close calls on the battlefield could be a main character. His past experiences of facing death could be the foundation for the fanfiction's story, and he might face new challenges that bring back those old traumas.
Maybe a scientist who, in the pursuit of a dangerous experiment, has a brush with death and then has to deal with the consequences. This character could be very intelligent but also a bit reckless.
Passing by death was a near-death experience. The researchers studied 154 people who had passed by death and summarized some characteristics: 60% of people saw a bright light when they died;64% met other souls or people;5% met the " life marquee ";;4% met the future;35% felt their soul leave their body; and 36% felt their soul return to the body. There are also related studies in China. A survey of 81 survivors of the Tang Shan earthquake found that more than 50% of the people recalled their life experiences when they were on the verge of death, nearly 50% of them had a feeling of separation of consciousness from themselves, about one-third of them had a strange feeling of passing through a tunnel or tunnel-like space, and about one-fourth of them had experienced the phenomenon of " encountering " non-real people or souls. About a quarter of the people said that their body parts were scattered in the space, and then they felt that they were sinking into a bottomless abyss and that the surroundings were dark, but they felt that "light was coming". There were different explanations for the occurrence of near-death experiences. One believed that the brain secreted excessive chemicals such as dopamin and norepinephrin during near-death, causing various parts of the brain to be excited and hallucinating. The other believed that the temporal lobe played an important role in near-death experiences, and its abnormal activity produced strange feelings and sensations. In addition, there were also some examples of passing by death in real life. For example, playing the game "Dream of the Tang Dynasty" may lead to death due to lack of oxygen and suffocation due to suffocation; if you accidentally enter an area with high gas concentration in a coal mine, it may lead to suffocation or explosion; there were also personal experiences of being shot in the temple or almost killed by a tractor while riding a bicycle.
One idea could be exploring the backstory of the main character in the fanfiction. Maybe they had a near - death experience in their childhood that shaped who they are now.
Another potential set of new characters could be ancient wizards or witches who were once associated with the concept of the master of death. They could come back to either guide Harry or challenge his claim to the title. This would add a lot of depth to the story as Harry would have to prove himself to these predecessors or learn from their experiences.
There could be a wise old wizard who has knowledge about the true nature of the Master of Death and becomes Harry's mentor. Maybe a powerful magical creature that is drawn to Harry's power and offers its assistance.
Sora could be a main character as he is often central in the Keyblade universe. His determination and pure heart would make him a key figure in the war. Another could be Riku, with his complex character and his own journey of growth and redemption.
It could be an adult who had a very difficult childhood and is given a chance to go back and rewrite it. For example, a character who grew up in poverty and now gets to experience a better childhood.
A new, original character could be the main character in a Naruto chains fanfiction. This character could be from a small, unknown ninja village and possess a unique ability to control chains made of some special material. They could come to the Hidden Leaf Village and get involved in the events there, interacting with the well - known Naruto characters.
A fallen angel could be a great main character. They have already experienced a fall from grace and now are faced with these 108 earthly temptations as a chance for redemption. They have knowledge of both good and evil, but still struggle with the earthly allures.
Obviously, the drunk dragon itself can be the main character. It could have a unique personality, perhaps being a bit clumsy and overly friendly when drunk.
Obviously, the black wolf itself could be a main character. It could have a distinct personality, like being brave yet a bit solitary.