I'm not sure which novel or movie you're referring to when you say 'the devil is by my side'. Please provide more information so that I can answer your question more accurately.
I'm a fan of web novels, and I don't have any knowledge about the Devil's Side storyline. If you have any more information about the novel, I will try my best to help you.
I don't know for sure as I haven't read it. But likely, there is a character who has some sort of encounter with the devil. So, one main character is probably the one who is spending the ten days with the devil, and of course, the devil itself is a main character.
I'm not sure specifically as I haven't read this fanfic. But it could be a young protagonist, perhaps a teenager, who is sensitive to the beat beneath their feet. Maybe it's a girl who is on a quest to figure out what the beat means.
The symptoms of sudden weakness and paralysis could be caused by many reasons. Common causes included hypokalemias, cerebral hemorrhage, cerebral hemorrhage, stroke, stroke, brain stem injury, demyelinating disease, venous sinuosity, central nervous system diseases, peripheral nervous system diseases, myogenic diseases, and metabolism diseases. For different causes, they needed to go to the hospital for diagnosis and treatment according to the specific situation. If you suddenly have symptoms like weakness and paralysis of your hands and feet, you should seek medical advice in time for relevant examinations and treatment.
Cold hands and feet referred to the feeling of coldness caused by the low temperature of a certain part of the human body. Common reasons for cold hands and feet include:
- Poor blood circulation: Poor blood circulation will cause the body temperature to be too low, especially after sitting for a long time, standing or walking for a long time.
- Cold weather: In cold weather, the human body will feel cold because it cannot obtain enough heat in time.
- Low blood pressure: Low blood pressure refers to low blood pressure that causes the human body to feel cold.
- Anemias: Anemias refers to the low number of red blood cells or the low concentration of hemoglobin in the blood, resulting in low body temperature.
- A problem with the thyreoid: A problem with the thyreoid may cause the body's metabolism to slow down and affect the body's temperature.
- [Others: There are many other reasons for the cold hands and feet that need to be analyzed according to the specific situation.]
In novels, cold hands and feet could be caused by some plot or character's state, such as suffering from cold weather, fighting for a long time, or being weak.
The main characters are mainly Bella, Edward, and Jacob. Bella is often the character who finds herself in situations where she could be described as 'dead on her feet'. For example, when she's caught between Edward's vampire world and Jacob's werewolf world, the stress can be overwhelming. Edward, with his brooding nature and his need to protect Bella, is also a key figure. And Jacob, with his loyalty to his pack and his love for Bella, is a mainstay in these fanfictions. Sometimes, characters like Carlisle or Esme from the Cullen family might also be important main characters depending on the plot of the 'dead on my feet' fanfiction.
Since I haven't read or played this particular visual novel, it's difficult to say exactly who the main characters are. However, based on the title, one can assume that there is a character who has a devil in their arms. This could be the protagonist, and perhaps there is another character who is the devil. There may also be side characters such as those from the protagonist's normal life who get affected by this strange relationship with the devil.
Since I don't know the exact '7 first kisses story', I can't say for sure who the characters are. But it could be about a young girl or boy and the various people they kiss, like friends, lovers, or maybe even strangers in some unexpected situations.