I don't know for sure, but it could be the ninja himself or herself as the main character. Maybe there are also some opponents like rival ninjas or samurais.
Since I haven't read the 'night time ninja story', it's hard to say precisely. However, typically in a ninja - themed story, the main character would be the ninja. There might be a sensei or a master who has trained the ninja. And there could be enemies, perhaps other ninjas from a different clan or some sort of evil warlord who the ninja is trying to stop. There may also be civilians in the story, like villagers that the ninja is protecting. These characters would all play important roles in creating the plot and the overall atmosphere of the story.
The main character in a Minecraft night time story is typically the player. This is because the player controls all the actions and decisions during the night. But we can't forget about the mobs as a sort of 'antagonist' characters. Zombies, skeletons, and creepers are always there to make the night difficult for the player. In some cases, if the story is focused on a community aspect, the village leader or the guards of the village can be important characters too as they contribute to the overall safety and development during the night.
The main characters in the ninja turtle story are the four turtles - Leonardo, Donatello, Raphael, and Michelangelo, and their sensei Splinter, as well as the villain Shredder.
Most likely, the main character is the boy ninja himself. There could also be his ninja master who teaches him the ways of the ninja.
I'm not sure specifically, but there could be the Ninja Kid himself as the main character.
Since it's Ninja Kids Story, the main characters could be a bunch of young and brave kids. There might be a leader among them, who is very determined and smart. Another character could be the funny one, always making jokes even in dangerous situations. And there could be a shy but very talented kid when it comes to using ninja tools.
Often, the main characters are the ninjas themselves. They could be young trainees starting their journey.
The 'night time ninja story' could be centered around a ninja's nocturnal activities. Maybe it details how the ninja uses the night to his or her advantage. It could involve things like using the shadows to hide, moving silently through the streets or forests at night. It might also tell of the special skills the ninja has that are more effective at night, such as seeing in the dark or using the lack of light to surprise opponents. It could also be a story about a ninja's mission that can only be carried out at night, like stealing a valuable item from a well - guarded place.
I'm not sure exactly, but likely there are some cute ninja girls as main characters.
Ninja Hattori is definitely one of the main characters. And of course, his master Kenichi should be there too.
The super ninja boy is the central figure. But there could be other characters like his best friend who is always by his side during his adventures. And perhaps an antagonist, an evil ninja or a powerful sorcerer who is trying to stop the super ninja boy from achieving his goals.